結果
問題 | No.269 見栄っ張りの募金活動 |
ユーザー | is_eri23 |
提出日時 | 2015-10-04 09:54:40 |
言語 | C++11 (gcc 11.4.0) |
結果 |
AC
|
実行時間 | 37 ms / 5,000 ms |
コード長 | 2,562 bytes |
コンパイル時間 | 1,359 ms |
コンパイル使用メモリ | 159,744 KB |
実行使用メモリ | 22,108 KB |
最終ジャッジ日時 | 2024-07-16 01:49:49 |
合計ジャッジ時間 | 2,278 ms |
ジャッジサーバーID (参考情報) |
judge2 / judge4 |
(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 | AC | 11 ms
20,496 KB |
testcase_01 | AC | 11 ms
20,600 KB |
testcase_02 | AC | 11 ms
20,608 KB |
testcase_03 | AC | 12 ms
20,608 KB |
testcase_04 | AC | 21 ms
22,016 KB |
testcase_05 | AC | 11 ms
20,608 KB |
testcase_06 | AC | 11 ms
20,600 KB |
testcase_07 | AC | 37 ms
22,108 KB |
testcase_08 | AC | 11 ms
20,544 KB |
testcase_09 | AC | 11 ms
20,608 KB |
testcase_10 | AC | 11 ms
20,496 KB |
testcase_11 | AC | 14 ms
21,760 KB |
testcase_12 | AC | 11 ms
20,480 KB |
testcase_13 | AC | 14 ms
21,356 KB |
testcase_14 | AC | 13 ms
21,956 KB |
testcase_15 | AC | 14 ms
21,260 KB |
testcase_16 | AC | 11 ms
20,536 KB |
testcase_17 | AC | 10 ms
20,500 KB |
testcase_18 | AC | 19 ms
21,328 KB |
testcase_19 | AC | 13 ms
20,956 KB |
testcase_20 | AC | 11 ms
21,120 KB |
testcase_21 | AC | 13 ms
21,888 KB |
testcase_22 | AC | 12 ms
20,864 KB |
testcase_23 | AC | 11 ms
20,592 KB |
testcase_24 | AC | 12 ms
21,376 KB |
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 N,S,K; ll memo[110][20010]; ll dp_go(int now, int sum){ if (now == N) { return sum == 0; } if (memo[now][sum] >= 0) { return memo[now][sum]; } int remain = N - now; ll ans = dp_go(now + 1, sum); if (sum >= remain) { ans += dp_go(now, sum - remain); } return memo[now][sum] = ans % MOD; } int main() { cin.tie(0); ios_base::sync_with_stdio(0); mem(memo,-1); cin >> N >> S >> K; rep(i,N){ S -= i * K; } if (S < 0) { cout << 0 << endl; return 0; } DEBUG1(S); cout << max(0LL, dp_go(0,S)) << endl; return 0; }