結果
| 問題 | No.2565 はじめてのおつかい |
| ユーザー |
👑 |
| 提出日時 | 2023-11-23 15:57:47 |
| 言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
| 結果 |
TLE
|
| 実行時間 | - |
| コード長 | 5,622 bytes |
| コンパイル時間 | 4,689 ms |
| コンパイル使用メモリ | 276,904 KB |
| 実行使用メモリ | 21,200 KB |
| 最終ジャッジ日時 | 2023-11-23 15:57:59 |
| 合計ジャッジ時間 | 11,953 ms |
|
ジャッジサーバーID （参考情報） |
judge14 / judge15 |
（要ログイン）
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 | TLE | - |
| testcase_01 | -- | - |
| testcase_02 | -- | - |
| testcase_03 | -- | - |
| testcase_04 | -- | - |
| testcase_05 | -- | - |
| testcase_06 | -- | - |
| testcase_07 | -- | - |
| testcase_08 | -- | - |
| testcase_09 | -- | - |
| testcase_10 | -- | - |
| testcase_11 | -- | - |
| testcase_12 | -- | - |
| testcase_13 | -- | - |
| testcase_14 | -- | - |
| testcase_15 | -- | - |
| testcase_16 | -- | - |
| testcase_17 | -- | - |
| testcase_18 | -- | - |
| testcase_19 | -- | - |
| testcase_20 | -- | - |
| testcase_21 | -- | - |
| testcase_22 | -- | - |
| testcase_23 | -- | - |
| testcase_24 | -- | - |
| testcase_25 | -- | - |
| testcase_26 | -- | - |
| testcase_27 | -- | - |
| testcase_28 | -- | - |
| testcase_29 | -- | - |
| testcase_30 | -- | - |
| testcase_31 | -- | - |
| testcase_32 | -- | - |
| testcase_33 | -- | - |
| testcase_34 | -- | - |
| testcase_35 | -- | - |
| testcase_36 | -- | - |
| testcase_37 | -- | - |
| testcase_38 | -- | - |
| testcase_39 | -- | - |
| testcase_40 | -- | - |
| testcase_41 | -- | - |
| testcase_42 | -- | - |
| testcase_43 | -- | - |
| testcase_44 | -- | - |
| testcase_45 | -- | - |
| testcase_46 | -- | - |
| testcase_47 | -- | - |
| testcase_48 | -- | - |
| testcase_49 | -- | - |
| testcase_50 | -- | - |
| testcase_51 | -- | - |
| testcase_52 | -- | - |
ソースコード
#include<bits/stdc++.h>
#include<atcoder/all>
using namespace std;
using namespace atcoder;
using lint = long long;
using ulint = unsigned long long;
using llint = __int128_t;
#define endl '\n'
int const INF = 1<<30;
lint const INF64 = 1LL<<61;
lint const mod107 = 1e9+7;
using mint107 = modint1000000007;
long const mod = 998244353;
using mint = modint998244353;
lint ceilDiv(lint x, lint y){if(x >= 0){return (x+y-1)/y;}else{return x/y;}}
lint floorDiv(lint x, lint y){if(x >= 0){return x/y;}else{return (x-y+1)/y;}}
lint Sqrt(lint x) {assert(x >= 0); lint ans = sqrt(x); while(ans*ans > x)ans--; while((ans+1)*(ans+1)<=x)ans++; return ans;}
lint gcd(lint a,lint b){if(a<b)swap(a,b);if(a%b==0)return b;else return gcd(b,a%b);}
lint lcm(lint a,lint b){return (a / gcd(a,b)) * b;}
lint chmin(vector<lint>&v){lint ans = INF64;for(lint i:v){ans = min(ans, i);}return ans;}
lint chmax(vector<lint>&v){lint ans = -INF64;for(lint i:v){ans = max(ans, i);}return ans;}
double dist(double x1, double y1, double x2, double y2){return sqrt(pow(x1-x2, 2) + pow(y1-y2,2));}
string toString(lint n){string ans = "";if(n == 0){ans += "0";}else{while(n > 0){int a = n%10;char b = '0' + a;string c = "";c += b;n /= 10;ans = c + ans;}}return ans;}
string toString(lint n, lint k){string ans = toString(n);string tmp = "";while(ans.length() + tmp.length() < k){tmp += "0";}return tmp + ans;}
vector<lint>prime;void makePrime(lint n){prime.push_back(2);for(lint i=3;i<=n;i+=2){bool chk = true;for(lint j=0;j<prime.size() && prime[j]*prime[j] <= i;j++){if(i % prime[j]==0){chk=false;break;}}if(chk)prime.push_back(i);}}
lint Kai[20000001]; bool firstCallnCr = true;
lint ncrmodp(lint n,lint r,lint p){ if(firstCallnCr){ Kai[0] = 1; for(int i=1;i<=20000000;i++){ Kai[i] = Kai[i-1] * i; Kai[i] %= p;} firstCallnCr = false;} if(n<0)return 0;
if(n < r)return 0;if(n==0)return 1;lint ans = Kai[n];lint tmp = (Kai[r] * Kai[n-r]) % p;for(lint i=1;i<=p-2;i*=2){if(i & p-2){ans *= tmp;ans %= p;}tmp *= tmp;tmp %= p;}return ans;}
#define rep(i, n) for(int i = 0; i < n; i++)
#define repp(i, x, y) for(int i = x; i < y; i++)
#define vec vector
#define pb push_back
#define se second
#define fi first
#define all(x) x.begin(),x.end()
#define rall(x) x.rbegin(),x.rend()
unsigned long Rand() {
static unsigned long x=123456789, y=362436069, z=521288629, w=88675123;
unsigned long t=(x^(x<<11));
x=y; y=z; z=w;
return ( w=(w^(w>>19))^(t^(t>>8)) );
}
struct Point {
lint x, y;
int quad;
Point(lint X, lint Y) {
x = X;
y = Y;
quad = getQuadrant();
}
int getQuadrant() {
if(x >= 0) {
if(y >= 0) return 1;
else return 4;
} else {
if(y >= 0) return 2;
else return 3;
}
}
};
bool operator<(const Point &left, const Point &right) {
if(left.quad == right.quad) {
return left.y * right.x < left.x * right.y;
} else {
return left.quad < right.quad;
}
}
struct Frac {
lint upper, lower;
Frac() {
Frac(0,1);
}
Frac(lint u, lint l) {
assert(l != 0);
if(u <= 0 && l < 0) {
upper = -u;
lower = -l;
} else {
upper = u;
lower = l;
}
reduction();
}
Frac(lint u) {
upper = u;
lower = 1;
}
void reduction() {
if(upper != 0) {
lint g = gcd(abs(upper), abs(lower));
upper /= g;
lower /= g;
if(lower < 0) {
lower *= -1;
upper *= -1;
}
} else {
lower = 1;
}
}
Frac operator+(const Frac &other) {
lint L = lower * other.lower;
lint U = upper*other.lower + lower*other.upper;
return Frac(U, L);
}
Frac operator-(const Frac &other) {
lint L = lower * other.lower;
lint U = upper*other.lower - lower*other.upper;
upper = U;
lower = L;
return Frac(U, L);
}
bool operator<=(const Frac &other) {
return upper*other.lower <= lower*other.upper;
}
Frac operator*(const Frac &other) {
lint L = lower * other.lower;
lint U = upper * other.upper;
return Frac(U, L);
}
Frac operator/(const Frac &other) {
assert(other.upper != 0);
lint L = lower * other.upper;
lint U = upper * other.lower;
return Frac(U, L);
}
};
bool operator<(const Frac &left, const Frac &right) {
return left.upper*right.lower < left.lower*right.upper;
}
lint extGCD(lint a, lint b, lint &x, lint &y) {
if (b == 0) {
x = 1;
y = 0;
return a;
}
lint d = extGCD(b, a%b, y, x);
y -= a/b * x;
return d;
}
struct edge{
int to;
};
using graph = vector<vector<edge>>;
lint n,m;
graph g(100000);
void f(int start, vec<lint>&dist) {
dist[start] = 0;
priority_queue<vec<lint>>que;
que.push({0, start});
while(!que.empty()) {
auto q = que.top();
que.pop();
lint v = q[1];
for(auto e: g[v]) {
if(dist[e.to] > dist[v] + 1) {
que.push({e.to, v});
}
}
}
}
int main(){
cin >> n >> m;
int u[m], v[m];
vec<vec<lint>>dist(3, vec<lint>(n, INF64));
rep(i, m) {
cin >> u[i] >> v[i];
u[i]--;v[i]--;
g[u[i]].pb({v[i]});
}
f(0, dist[0]);
f(n-1, dist[1]);
f(n-2, dist[2]);
lint ans = min(dist[0][n-1] + dist[1][n-2] + dist[2][0], dist[0][n-2] + dist[2][n-1] + dist[1][0]);
cout << ans << endl;
}