Submission #8894731
Source Code Expand
#include<bits/stdc++.h> #define ll long long #define rep(i, n) for(int i=0; i<n; i++) #define REP(i, n) for(int i=0; i<=n; i++) #define repr(i, n) for(int i=n; i>0; i--) #define REPR(i, n) for(int i=n; i>=0; i--) const ll INF = 1LL<<60; const int INT_INF = 1e9; const ll MOD = 1e9+7; template<class T> void puts(T x) { std::cout << x << std::endl; } template<class T> inline bool chmax(T& a, T b) { if (a < b) { a = b; return 1; } return 0; } template<class T> inline bool chmin(T& a, T b) { if (a > b) { a = b; return 1; } return 0; } using namespace std; const int MAX = 100010; ll calc(ll a, ll b) { if (b == 0) return 1; else if (b % 2 == 0) { ll d = calc(a, b/2); return (d * d) % MOD; } else { return (a * calc(a, b-1)) % MOD; } } int main() { ll w, h; cin >> w >> h; ll ans = 1; for (int i = 1; i <= w+h-2; i++) { ans *= i; ans %= MOD; } for (int i = h-1; i >= 1; i--) { ans *= calc(i, MOD-2); ans %= MOD; } for (int i = w-1; i >= 1; i--) { ans *= calc(i, MOD-2); ans %= MOD; } cout << ans << endl; }
Submission Info
Submission Time | |
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Task | C - 経路 |
User | bokeh |
Language | C++14 (GCC 5.4.1) |
Score | 101 |
Code Size | 1180 Byte |
Status | AC |
Exec Time | 54 ms |
Memory | 256 KB |
Judge Result
Set Name | Sample | Dataset1 | Dataset2 | All | ||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 50 / 50 | 50 / 50 | 1 / 1 | ||||||||
Status |
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Set Name | Test Cases |
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Sample | s0.txt, s1.txt |
Dataset1 | 000.txt, 001.txt, 002.txt, 003.txt, 004.txt, 005.txt, 006.txt, 007.txt, 008.txt, 009.txt, 010.txt, s0.txt |
Dataset2 | 000.txt, 001.txt, 002.txt, 003.txt, 004.txt, 005.txt, 006.txt, 007.txt, 008.txt, 009.txt, 010.txt, 011.txt, 012.txt, 013.txt, 014.txt, 015.txt, 016.txt, 017.txt, 018.txt, 019.txt, 020.txt, 021.txt, s0.txt, s1.txt |
All | 000.txt, 001.txt, 002.txt, 003.txt, 004.txt, 005.txt, 006.txt, 007.txt, 008.txt, 009.txt, 010.txt, 011.txt, 012.txt, 013.txt, 014.txt, 015.txt, 016.txt, 017.txt, 018.txt, 019.txt, 020.txt, 021.txt, 022.txt, 023.txt, 024.txt, 025.txt, 026.txt, 027.txt, 028.txt, 029.txt, 030.txt, 031.txt, 032.txt, s0.txt, s1.txt |
Case Name | Status | Exec Time | Memory |
---|---|---|---|
000.txt | AC | 1 ms | 256 KB |
001.txt | AC | 1 ms | 256 KB |
002.txt | AC | 1 ms | 256 KB |
003.txt | AC | 1 ms | 256 KB |
004.txt | AC | 1 ms | 256 KB |
005.txt | AC | 1 ms | 256 KB |
006.txt | AC | 1 ms | 256 KB |
007.txt | AC | 1 ms | 256 KB |
008.txt | AC | 1 ms | 256 KB |
009.txt | AC | 1 ms | 256 KB |
010.txt | AC | 1 ms | 256 KB |
011.txt | AC | 2 ms | 256 KB |
012.txt | AC | 1 ms | 256 KB |
013.txt | AC | 2 ms | 256 KB |
014.txt | AC | 2 ms | 256 KB |
015.txt | AC | 2 ms | 256 KB |
016.txt | AC | 2 ms | 256 KB |
017.txt | AC | 2 ms | 256 KB |
018.txt | AC | 2 ms | 256 KB |
019.txt | AC | 1 ms | 256 KB |
020.txt | AC | 1 ms | 256 KB |
021.txt | AC | 2 ms | 256 KB |
022.txt | AC | 46 ms | 256 KB |
023.txt | AC | 40 ms | 256 KB |
024.txt | AC | 37 ms | 256 KB |
025.txt | AC | 12 ms | 256 KB |
026.txt | AC | 12 ms | 256 KB |
027.txt | AC | 35 ms | 256 KB |
028.txt | AC | 42 ms | 256 KB |
029.txt | AC | 23 ms | 256 KB |
030.txt | AC | 40 ms | 256 KB |
031.txt | AC | 31 ms | 256 KB |
032.txt | AC | 54 ms | 256 KB |
s0.txt | AC | 1 ms | 256 KB |
s1.txt | AC | 1 ms | 256 KB |