結果
問題 | No.129 お年玉(2) |
ユーザー | is_eri23 |
提出日時 | 2015-01-18 04:03:08 |
言語 | C++11 (gcc 11.4.0) |
結果 |
WA
|
実行時間 | - |
コード長 | 2,802 bytes |
コンパイル時間 | 1,481 ms |
コンパイル使用メモリ | 160,428 KB |
実行使用メモリ | 6,948 KB |
最終ジャッジ日時 | 2024-06-22 18:54:41 |
合計ジャッジ時間 | 2,576 ms |
ジャッジサーバーID (参考情報) |
judge3 / judge2 |
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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 | WA | - |
testcase_01 | AC | 2 ms
6,944 KB |
testcase_02 | AC | 2 ms
6,944 KB |
testcase_03 | AC | 2 ms
6,944 KB |
testcase_04 | AC | 2 ms
6,940 KB |
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 | WA | - |
testcase_24 | WA | - |
testcase_25 | WA | - |
testcase_26 | WA | - |
testcase_27 | WA | - |
testcase_28 | WA | - |
testcase_29 | AC | 2 ms
6,940 KB |
testcase_30 | AC | 2 ms
6,940 KB |
testcase_31 | AC | 1 ms
6,940 KB |
testcase_32 | WA | - |
testcase_33 | AC | 2 ms
6,944 KB |
testcase_34 | WA | - |
testcase_35 | WA | - |
testcase_36 | WA | - |
testcase_37 | WA | - |
testcase_38 | WA | - |
testcase_39 | WA | - |
testcase_40 | WA | - |
testcase_41 | WA | - |
testcase_42 | WA | - |
testcase_43 | WA | - |
testcase_44 | WA | - |
testcase_45 | WA | - |
testcase_46 | WA | - |
testcase_47 | WA | - |
testcase_48 | WA | - |
ソースコード
#include <bits/stdc++.h> #define EPS 1e-9 #define INF 1070000000LL #define MOD 1000000007LL #define fir first #define foreach(it,X) for(auto it=(X).begin();it!=(X).end();it++) #define numa(x,a) for(auto x: a) #define ite iterator #define mp make_pair #define rep(i,n) rep2(i,0,n) #define rep2(i,m,n) for(int i=m;i<(n);i++) #define pb push_back #define pf push_front #define sec second #define sz(x) ((int)(x).size()) #define ALL( c ) (c).begin(), (c).end() #define gcd(a,b) __gcd(a,b) #define mem(x,n) memset(x,n,sizeof(x)) #define endl "\n" using namespace std; template <int POS, class TUPLE> void deploy(std::ostream &os, const TUPLE &tuple){} template <int POS, class TUPLE, class H, class ...Ts> void deploy(std::ostream &os, const TUPLE &t){ os << (POS == 0 ? "" : ", ") << get<POS>(t); deploy<POS + 1, TUPLE, Ts...>(os, t); } template <class T,class U> std::ostream& operator<<(std::ostream &os, std::pair<T,U> &p){ os << "(" << p.first <<", " << p.second <<")";return os; } template <class T> std::ostream& operator<<(std::ostream &os, std::vector<T> &v){ int remain = v.size(); os << "{"; for(auto e: v) os << e << (--remain == 0 ? "}" : ", "); return os; } template <class T> std::ostream& operator<<(std::ostream &os, std::set<T> &v){ int remain = v.size(); os << "{"; for(auto e: v) os << e << (--remain == 0 ? "}" : ", "); return os; } template <class T, class K> std::ostream& operator<<(std::ostream &os, std::map<T, K> &mp){ int remain = mp.size(); os << "{"; for(auto e: mp) os << "(" << e.first << " -> " << e.second << ")" << (--remain == 0 ? "}" : ", "); return os; } #define DEBUG1(var0) { std::cerr << (#var0) << "=" << (var0) << endl; } #define DEBUG2(var0, var1) { std::cerr << (#var0) << "=" << (var0) << ", ";DEBUG1(var1); } #define DEBUG3(var0, var1, var2) { std::cerr << (#var0) << "=" << (var0) << ", ";DEBUG2(var1,var2); } #define DEBUG4(var0, var1, var2, var3) { std::cerr << (#var0) << "=" << (var0) << ", ";DEBUG3(var1,var2,var3); } using ll = long long; int extgcd(int a,int b,int &x,int &y){ int d = a; if(b != 0){ d = extgcd(b, a % b,y,x); y -= (a / b) * x; }else{ x = 1; y = 0; } return d; } int mod_inv(int a, int p){ int x,y; extgcd(a,p,x,y); return (p + x % p) % p; } ll solve1(ll N, ll M){ N /= M; while(N % 1000 != 0){ N -= 1; } return N; } int main() { cin.tie(0); ios_base::sync_with_stdio(0); ll N,M; cin >> N >> M; N -= M * solve1(N,M); N /= 1000; N %= M; //DEBUG2(M,N); //MCN ll child = 1; rep(i,M){ child *= (i+1); child %= MOD; } ll mom1 = 1; rep(i,N){ mom1 *= (i+1); mom1 %= MOD; } ll mom2 = 1; rep(i,M-N){ mom2 *= (i+1); mom2 %= MOD; } mom1 *= mom2; mom1 %= MOD; cout << (child * mod_inv((int) mom1,MOD)) % MOD << endl; return 0; }