結果
問題 | No.801 エレベーター |
ユーザー |
|
提出日時 | 2019-03-29 20:04:19 |
言語 | C++14 (gcc 13.3.0 + boost 1.87.0) |
結果 |
AC
|
実行時間 | 118 ms / 2,000 ms |
コード長 | 3,045 bytes |
コンパイル時間 | 1,160 ms |
コンパイル使用メモリ | 117,224 KB |
実行使用メモリ | 6,820 KB |
最終ジャッジ日時 | 2024-11-07 01:23:24 |
合計ジャッジ時間 | 3,934 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge3 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 3 |
other | AC * 26 |
ソースコード
#define _USE_MATH_DEFINES#include<iostream>#include<string>#include<queue>#include<cmath>#include<map>#include<set>#include<list>#include<iomanip>#include<vector>#include<random>#include<functional>#include<algorithm>#include<stack>#include<cstdio>#include<bitset>#include<unordered_map>#include<climits>#include<fstream>using namespace std;///////////////////library zone!!!!!!!!!!!!!!!!!!!!!!!!!!!!typedef long long ll;typedef long double ld;#define all(a) (a).begin(),(a).end()#define EPS (1e-5)const ll Mod = 1000000007;const ll mod = 998244353;struct H {ll x, y;bool operator<(const H &b) const {if (x != b.x) return x < b.x;return y < b.y;}bool operator>(const H &b) const {if (x != b.x) return x > b.x;return y > b.y;}bool operator==(const H &b) const { return x == b.x&&y == b.y; }bool operator!=(const H &b) const { return (*this) != b; }};struct P {ll pos, cost;bool operator<(const P &b) const { return cost < b.cost; }bool operator>(const P &b) const { return cost > b.cost; }};struct B {ll to, cost;};struct E {ll from, to, cost;bool operator<(const E &b) const { return cost < b.cost; }bool operator>(const E &b) const { return cost > b.cost; }};template<typename T, typename U>void chmin(T &a, U b) {if (a > b) a = b;}template<typename T, typename U>void chmax(T &a, U b) {if (a < b) a = b;}template<typename T>T max_0(T a) {if (a < 0) return 0;return a;}template<typename T>T min_0(T a) {if (a > 0) return 0;return a;}ll read() {ll u;ll k = scanf("%lld", &u);return u;}ll gcd(ll i, ll j) {if (i > j) swap(i, j);if (i == 0) return j;return gcd(j%i, i);}ll mod_pow(ll x, ll n, ll p) {ll res = 1;while (n > 0) {if (n & 1) res = res * x % p;x = x * x % p;n >>= 1;}return res;}//x^n%pvector<string>split(string s, char c = ' ') {vector<string>vec;string h = "";for (int i = 0; i < s.size();) {int j = i;while (j < s.size() && s[j] != ' ') {h += s[j++];}if (h.size() > 0) vec.push_back(h);h = "";i = j + 1;}return vec;}template<typename T>void print_vec(vector<T>a) {for (int i = 0; i < a.size(); i++) {cout << (i == 0 ? "" : " ") << a[i];}cout << endl;}const ll Inf = 3023372036854775807;const int inf = 1500000000;#define int long long//----------------------------------------------------int n, m, k;H a[10000];int dp[10000];//j回の移動の後でi階にたどり着く通り数int b[10000];//累積和signed main() {cin >> n >> m >> k;for (int i = 0; i < m; i++) {cin >> a[i].x >> a[i].y;a[i].x--; a[i].y--;}dp[0] = 1;for (int i = 0; i < k; i++) {for (int j = 0; j < n; j++) {b[j] = (j == 0 ? 0 : b[j - 1]);b[j] += dp[j];b[j] %= Mod;dp[j] = 0;}for (int j = 0; j < m; j++) {int k = b[a[j].y] - (a[j].x == 0 ? 0 : b[a[j].x - 1]);dp[a[j].x] += k;dp[a[j].y + 1] -= k;}for (int j = 1; j < n; j++) {dp[j] += dp[j - 1];dp[j] %= Mod;}}cout << (dp[n - 1] + Mod) % Mod << endl;}