結果
| 問題 | No.1364 [Renaming] Road to Cherry from Zelkova |
| ユーザー |
 Konton7
|
| 提出日時 | 2021-01-23 00:12:36 |
| 言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
| 結果 |
WA
|
| 実行時間 | - |
| コード長 | 15,824 bytes |
| コンパイル時間 | 3,576 ms |
| コンパイル使用メモリ | 249,712 KB |
| 実行使用メモリ | 41,164 KB |
| 最終ジャッジ日時 | 2024-06-09 04:52:48 |
| 合計ジャッジ時間 | 14,486 ms |
|
ジャッジサーバーID （参考情報） |
judge3 / judge4 |
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テストケース
テストケース表示| 入力 | 結果 | 実行時間 実行使用メモリ |
|---|---|---|
| testcase_00 | AC | 2 ms
5,248 KB |
| testcase_01 | AC | 3 ms
5,376 KB |
| testcase_02 | AC | 3 ms
5,376 KB |
| testcase_03 | WA | - |
| testcase_04 | WA | - |
| testcase_05 | WA | - |
| testcase_06 | WA | - |
| testcase_07 | WA | - |
| testcase_08 | WA | - |
| testcase_09 | WA | - |
| testcase_10 | WA | - |
| testcase_11 | WA | - |
| testcase_12 | WA | - |
| testcase_13 | WA | - |
| testcase_14 | WA | - |
| testcase_15 | WA | - |
| testcase_16 | WA | - |
| testcase_17 | WA | - |
| testcase_18 | WA | - |
| testcase_19 | WA | - |
| testcase_20 | WA | - |
| testcase_21 | WA | - |
| testcase_22 | WA | - |
| testcase_23 | AC | 66 ms
12,772 KB |
| testcase_24 | AC | 40 ms
5,376 KB |
| testcase_25 | AC | 197 ms
19,796 KB |
| testcase_26 | AC | 330 ms
26,360 KB |
| testcase_27 | AC | 221 ms
17,536 KB |
| testcase_28 | AC | 121 ms
15,744 KB |
| testcase_29 | AC | 246 ms
16,640 KB |
| testcase_30 | AC | 146 ms
15,872 KB |
| testcase_31 | WA | - |
| testcase_32 | AC | 196 ms
13,568 KB |
| testcase_33 | AC | 356 ms
23,552 KB |
| testcase_34 | AC | 333 ms
26,196 KB |
| testcase_35 | WA | - |
| testcase_36 | WA | - |
| testcase_37 | AC | 143 ms
8,832 KB |
| testcase_38 | WA | - |
| testcase_39 | WA | - |
| testcase_40 | WA | - |
| testcase_41 | WA | - |
| testcase_42 | WA | - |
| testcase_43 | WA | - |
| testcase_44 | AC | 134 ms
28,208 KB |
| testcase_45 | AC | 179 ms
37,200 KB |
| testcase_46 | AC | 56 ms
16,760 KB |
| testcase_47 | AC | 2 ms
5,376 KB |
ソースコード
#include <bits/stdc++.h>
// #include <set>
// #include <map>
// #include <cmath>
// #include <deque>
// #include <vector>
// #include <iostream>
// #include <algorithm>
using namespace std;
using ll = long long;
using VI = vector<int>;
using VL = vector<ll>;
using VD = vector<double>;
using VS = vector<string>;
using VB = vector<bool>;
using VVB = vector<vector<bool>>;
using VVI = vector<VI>;
using VVL = vector<VL>;
using VVD = vector<VD>;
using VVVI = vector<VVI>;
using VVVL = vector<VVL>;
using VVVD = vector<VVD>;
using PII = std::pair<int, int>;
using VPII = std::vector<std::pair<int, int>>;
using PLL = std::pair<ll, ll>;
using VPLL = std::vector<std::pair<ll, ll>>;
using TI3 = std::tuple<int, int, int>;
using TI4 = std::tuple<int, int, int, int>;
using TL3 = std::tuple<ll, ll, ll>;
using TL4 = std::tuple<ll, ll, ll, ll>;
#define rep(i, n) for (int i = 0; i < (int)(n); i++)
#define repr(i, n) for (int i = (int)(n)-1; i >= 0; i--)
#define rep2(i, s, n) for (int i = (s); i < (int)(n); i++)
#define repr2(i, g, n) for (int i = (int)(n)-1; i >= (g); i--)
#define rep3(i, s, n, d) for (int i = (s); i < (int)(n); i += (d))
#define allpt(v) (v).begin(), (v).end()
#define allpt_c(v) (v).cbegin(), (v).cend()
#define allpt_r(v) (v).rbegin(), (v).rend()
#define allpt_cr(v) (v).crbegin(), (v).crend()
const int mod1 = 1e9 + 7, mod2 = 998244353, mod3 = 1e9 + 9;
const int mod = mod1;
const ll inf = 1e18;
const int infint = 1e9;
const string wsp = " ";
const string tb = "\t";
const string rt = "\n";
const string alphabets = "abcdefghijklmnopqrstuvwxyz";
template <typename T>
void show1dvec(const vector<T> &v) {
if (v.size() == 0) return;
int n = v.size() - 1;
rep(i, n) cout << v[i] << wsp;
cout << v[n] << rt;
return;
}
int get1dcoodinate(int w, int i, int j) { return i * w + j; }
template <typename T>
ostream &operator<<(ostream &os, const vector<T> &v) {
if (v.size() == 0) return os;
int n = v.size() - 1;
rep(i, n) os << v[i] << wsp;
os << v[n] << rt;
return os;
}
template <typename T>
istream &operator>>(istream &is, vector<T> &v) {
if (v.size() == 0) return is;
int n = v.size();
rep(i, n) is >> v[i];
return is;
}
template <typename T>
ostream &operator<<(ostream &os, const vector<vector<T>> &v) {
if (v.size() == 0) return os;
int n = v.size();
rep(i, n) os << v[i];
return os;
}
template <typename T>
istream &operator>>(istream &is, vector<vector<T>> &v) {
if (v.size() == 0) return is;
int n = v.size();
rep(i, n) is >> v[i];
return is;
}
template <typename T, typename S>
istream &operator>>(istream &is, vector<pair<T, S>> &v) {
if (v.size() == 0) return is;
int n = v.size();
rep(i, n) is >> v[i].first >> v[i].second;
return is;
}
template <typename T, typename S>
ostream &operator<<(ostream &os, const vector<pair<T, S>> &v) {
if (v.size() == 0) return os;
int n = v.size();
rep(i, n) os << v[i].first << v[i].second << rt;
return os;
}
void show2dvec(const vector<string> &v) {
int n = v.size();
rep(i, n) cout << v[i] << rt;
}
template <typename T>
void show2dvec(const vector<vector<T>> &v) {
int n = v.size();
rep(i, n) show1dvec(v[i]);
}
template <typename T>
void range_sort(vector<T> &arr, int l, int r) {
sort(arr.begin() + l, arr.begin() + r);
}
template <typename T, typename S>
void show1dpair(const vector<pair<T, S>> &v) {
int n = v.size();
rep(i, n) cout << v[i].first << wsp << v[i].second << rt;
return;
}
template <typename T, typename S>
void pairzip(const vector<pair<T, S>> &v, vector<T> &t, vector<T> &s) {
int n = v.size();
rep(i, n) {
t.push_back(v[i].first);
s.push_back(v[i].second);
}
return;
}
template <typename T>
void maxvec(vector<T> &v) {
T s = v[0];
int n = v.size();
rep(i, n - 1) {
if (s > v[i + 1]) {
v[i + 1] = s;
}
s = v[i + 1];
}
}
template <typename T, typename S>
bool myfind(T t, S s) {
return find(t.cbegin(), t.cend(), s) != t.cend();
}
bool check(int y, int x, int h, int w) {
return 0 <= y && y < h && 0 <= x && x < w;
}
bool iskadomatsu(int a, int b, int c) {
return (a != b && b != c && c != a) &&
((a > b && b < c) || (a < b && b > c));
}
double euc_dist(PII a, PII b) {
return sqrt(pow(a.first - b.first, 2) + pow(a.second - b.second, 2));
}
// VS split(string s, char c) {
// VS ret;
// string part;
// s += c;
// rep(i, s.length()) {
// if (s[i] == c) {
// if (part != "") ret.emplace_back(part);
// part = "";
// } else if (s[i] != c) {
// part += s[i];
// }
// }
// return ret;
// }
VS split(string s, char c, char d = ' ') {
VS ret;
// reverse(allpt(s));
string part;
s += c;
rep(i, s.length()) {
if (s[i] == c) {
if (part != "") {
string t;
t += c;
ret.emplace_back(t);
ret.emplace_back(part);
}
part = "";
} else if (s[i] == d) {
if (part != "") {
string t;
t += d;
ret.emplace_back(t);
ret.emplace_back(part);
}
part = "";
} else {
part += s[i];
}
}
return ret;
}
template <typename T, typename S, typename R>
ll pow_mod(T p, S q, R mod = 1ll) {
ll ret = 1, r = p;
while (q) {
if (q % 2) ret *= r, ret %= mod;
r = (r * r) % mod, q /= 2;
}
return ret % mod;
}
template <typename T, typename S>
ll pow_no_mod(T p, S q) {
ll ret = 1, r = p;
while (q) {
if (q % 2) ret *= r;
r = (r * r), q /= 2;
}
return ret;
}
void make_frac_tables(VL &frac_list, VL &frac_inv_list) {
rep(i, frac_list.size() - 1) {
frac_list[i + 1] *= frac_list[i] * (i + 1);
frac_list[i + 1] %= mod;
frac_inv_list[i + 1] *= frac_inv_list[i] * pow_mod(i + 1, mod - 2, mod);
frac_inv_list[i + 1] %= mod;
}
}
pair<VL, VL> make_frac_tables(int n) {
VL frac_list(n + 1, 1), frac_inv_list(n + 1, 1);
rep(i, n) {
frac_list[i + 1] *= frac_list[i] * (i + 1);
frac_list[i + 1] %= mod;
frac_inv_list[i + 1] *= frac_inv_list[i] * pow_mod(i + 1, mod - 2, mod);
frac_inv_list[i + 1] %= mod;
}
return make_pair(frac_list, frac_inv_list);
}
ll comb(int a, int b, const VL &frac_list, const VL &frac_inv_list) {
if (a < b) return 0;
if (b < 0) return 0;
ll ret = frac_list[a];
ret *= frac_inv_list[b];
ret %= mod;
ret *= frac_inv_list[a - b];
ret %= mod;
return ret;
}
struct vec2d {
ll x;
ll y;
vec2d(ll _x, ll _y) {
x = _x;
y = _y;
}
ll dot(vec2d p) { return x * p.x + y * p.y; }
vec2d diff(vec2d p) { return vec2d(x - p.x, y - p.y); }
};
struct node {
int parent = -1;
ll weight = 0;
int depth = 0;
int degree = 1;
int subtree = 1;
VPII children;
VPII connect;
node(int n) {
parent = -1;
weight = 0;
depth = 0;
degree = 0;
subtree = 1;
children;
connect;
}
};
struct graph {
int _n;
int root = 0;
vector<node> nodes;
graph(int n) {
_n = n;
rep(i, _n) nodes.emplace_back(node(_n));
}
void getconnect0_1() {
int a, b;
cin >> a >> b;
nodes[a].connect.emplace_back(b, 0);
nodes[b].connect.emplace_back(a, 0);
}
void getconnect0_2() {
int a, b, c;
cin >> a >> b >> c;
nodes[a].connect.emplace_back(b, c);
nodes[b].connect.emplace_back(a, c);
}
void getconnect1_1() {
int a, b;
cin >> a >> b;
a--, b--;
nodes[a].connect.emplace_back(b, 0);
nodes[b].connect.emplace_back(a, 0);
}
void getconnect1_2() {
int a, b, c;
cin >> a >> b >> c;
a--, b--;
nodes[a].connect.emplace_back(b, c);
nodes[b].connect.emplace_back(a, c);
}
void showparent() {
rep(i, _n - 1) cout << nodes[i].parent << wsp;
cout << nodes[_n - 1].parent << rt;
}
void showweight() {
rep(i, _n - 1) cout << nodes[i].weight << wsp;
cout << nodes[_n - 1].weight << rt;
}
void showsubtree() {
rep(i, _n - 1) cout << nodes[i].subtree << wsp;
cout << nodes[_n - 1].subtree << rt;
}
void showdepth() {
rep(i, _n - 1) cout << nodes[i].depth << wsp;
cout << nodes[_n - 1].depth << rt;
}
};
struct point {
int x;
int y;
point() {
x = 0;
y = 0;
}
point(int _x, int _y) {
x = _x;
y = _y;
}
void pointinput() {
int _x, _y;
cin >> _x >> _y;
x = _x;
y = _y;
}
void pointinv() { swap(x, y); }
};
double pointseuc(point a, point b) {
ll ax = a.x, bx = b.x, ay = a.y, by = b.y;
return sqrt(pow(ax - bx, 2) + pow(ay - by, 2));
}
ll pointseucsquare(point a, point b) {
ll ax = a.x, bx = b.x, ay = a.y, by = b.y;
return (ax - bx) * (ax - bx) + (ay - by) * (ay - by);
}
int pointsmanhattan(point a, point b) {
return abs(a.x - b.x) + abs(a.y - b.y);
}
double dist_segment_point(TL3 segment, point p) {
double a = get<0>(segment);
double b = get<1>(segment);
double c = get<2>(segment);
return abs(a * p.x + b * p.y - c) / (a * a + b * b + c * c);
}
TL3 segment_parameter(point p, point q) {
ll a, b, c;
a = q.y - p.y;
b = p.x - q.x;
c = a * p.x + b * p.y;
TL3 ret = (TL3){a, b, c};
// cout << a << b << c << rt;
return ret;
}
int cross_check(TL3 segment, point p) {
ll a = get<0>(segment);
ll b = get<1>(segment);
ll c = get<2>(segment);
auto f = a * p.x + b * p.y - c;
int ret;
if (f > 0) ret = 1;
if (f == 0) ret = 0;
if (f < 0) ret = -1;
return ret;
}
void shave(vector<int> &v, int n) {
if (n <= 1) return;
vector<bool> w(n + 1, true);
int x;
w[0] = w[1] = false;
rep2(i, 2, n + 1) {
if (w[i]) {
x = i * 2;
while (x <= n) {
w[x] = false;
x += i;
}
}
}
rep(i, n + 1) if (w[i]) v.emplace_back(i);
}
template <typename T>
void coordinate_compress(vector<T> &x, map<T, int> &zip, int &xs) {
sort(x.begin(), x.end());
x.erase(unique(x.begin(), x.end()), x.end());
xs = x.size();
for (int i = 0; i < xs; i++) {
zip[x[i]] = i;
}
}
// ll getpalindrome(int l, int r, const string &s, VL &memo) {
// if (r - l <= 1) return 1;
// if (memo[l] != -1) return memo[l];
// ll ret{1};
// int n = (r - l) / 2;
// string sl, sr;
// rep(i, n) {
// sl += s[l + i];
// sr += s[r - 1 - i];
// string rsr(i + 1, '0');
// reverse_copy(allpt_c(sr), rsr.begin());
// // cout << sl << wsp << sr << wsp << rsr << rt;
// if (sl == rsr) {
// ret += getpalindrome(l + i + 1, r - i - 1, s, memo);
// ret %= mod;
// }
// }
// memo[l] = ret;
// return ret;
// }
void getpalindrome(int l, int r, int n, const string &s, VVB &memo) {
if (r - l <= 1 || s[l] == s[r - 1]) {
memo[l][r] = true;
if (l > 0 && r < n) {
getpalindrome(l - 1, r + 1, n, s, memo);
}
}
return;
}
// void djcstra(graph graphs, int s, int t) {
// const int n = graphs._n;
// VL shortest(n, inf);
// shortest[s] = 0;
// priority_queue<pair<ll, int>> pq;
// pq.push(make_pair(0, s));
// while (!pq.empty()) {
// auto [t, v] = pq.top();
// pq.pop();
// t = -t;
// if (shortest[v] != t) continue;
// for (auto [u, c] : graphs.nodes[v].connect) {
// if (t + c < shortest[u]) {
// shortest[u] = t + c;
// pq.push(make_pair(-(t + c), u));
// }
// }
// }
// }
// #define DEBUG
void dfs(const VVI &connect, int u, VB &check, VI &post_order, int &c) {
for (auto v : connect[u])
if (!check[v]) {
check[v] = true;
dfs(connect, v, check, post_order, c);
}
post_order[u] = c;
++c;
}
void dfs2(const VVI &connect, int u, VB &check, VI &parent_list, int p) {
parent_list[u] = p;
// cout << "P = " << p << rt;
for (auto v : connect[u])
if (!check[v]) {
check[v] = true;
dfs2(connect, v, check, parent_list, p);
}
}
void bfs(const vector<VPII> &connect, int n, const VB &check) {
set<int> search, new_search;
VI indeg(n + 1, 0);
rep(u, n + 1) for (auto [v, _] : connect[u]) { indeg[v]++; }
rep(u, n + 1) if (u && !indeg[u]) search.insert(u);
while (!search.empty()) {
for (auto u : search)
for (auto [v, _] : connect[u]) {
--indeg[v];
if (!indeg[v]) search.insert(v);
}
search = new_search;
new_search.clear();
}
VL ans_list(n + 1, 0);
ans_list[0] = 1;
VB isinf = check;
search.insert(0);
while (!search.empty()) {
for (auto u : search)
for (auto [v, d] : connect[u]) {
--indeg[v];
ans_list[v] += (ans_list[u] * d) % mod;
ans_list[v] %= mod;
isinf[v] = isinf[u] | isinf[v];
if (!indeg[v]) search.insert(v);
}
search = new_search;
new_search.clear();
}
// cout << isinf << ans_list;
if (isinf[n])
cout << "INF" << rt;
else
cout << ans_list[n] << rt;
}
int main() {
cin.tie(0);
ios::sync_with_stdio(false);
// リアクティブ問題のときはコメントアウト
#ifdef DEBUG
cout << "DEBUG MODE" << endl;
// ifstream in("input.txt"); // for debug
// cin.rdbuf(in.rdbuf()); // for debug
chrono::system_clock::time_point timestart, timeend; // for debug
timestart = std::chrono::system_clock::now(); // for debug
#endif
int n, m, a, b, counter{0};
cin >> n >> m;
ll c, d;
VVI connect(n + 1), connect2(n + 1);
vector<VPII> connect3(n + 1);
map<PII, ll> roads_map;
VI post_order(n + 1), parent_list(n + 1, 0);
VPII second_order;
VB check(n + 1, false);
rep(i, m) {
cin >> a >> b >> c >> d;
roads_map[(PII){a, b}] += (c * d) % mod;
if (upper_bound(allpt_c(connect[a]), b) ==
lower_bound(allpt_c(connect[a]), b)) {
connect[a].emplace_back(b);
connect2[b].emplace_back(a);
}
}
dfs(connect, 0, check, post_order, counter);
rep(i, n + 1) second_order.emplace_back((PII){post_order[i], i});
sort(allpt_r(second_order));
fill(allpt(check), false);
for (auto [_, u] : second_order) {
// cout << "U = " << u << rt;
if (!check[u]) {
check[u] = true;
dfs2(connect2, u, check, parent_list, u);
}
}
fill(allpt(check), false);
for (auto [p, q] : roads_map) {
auto [a, b] = p;
auto pa = parent_list[a];
auto pb = parent_list[b];
if (pa == pb)
check[a] = check[b] = true;
else
connect3[pa].emplace_back((PII){pb, (int)q});
}
// cout << parent_list << check << connect3;
bfs(connect3, n, check);
#ifdef DEBUG
timeend = chrono::system_clock::now();
auto elapsed =
chrono::duration_cast<chrono::milliseconds>(timeend - timestart)
.count();
cout << "Time is " << elapsed << "ms" << std::endl;
#endif
return 0;
}