結果
| 問題 |
No.1 道のショートカット
|
| コンテスト | |
| ユーザー |
Ricky_pon
|
| 提出日時 | 2020-05-17 20:31:56 |
| 言語 | C++17 (gcc 13.3.0 + boost 1.87.0) |
| 結果 |
AC
|
| 実行時間 | 4 ms / 5,000 ms |
| コード長 | 1,632 bytes |
| コンパイル時間 | 2,740 ms |
| コンパイル使用メモリ | 194,804 KB |
| 最終ジャッジ日時 | 2025-01-10 12:46:04 |
|
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 * 4 |
| other | AC * 40 |
コンパイルメッセージ
main.cpp: In function ‘int main()’:
main.cpp:37:10: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
37 | scanf("%d%d%d", &n, &C, &m);
| ~~~~~^~~~~~~~~~~~~~~~~~~~~~
main.cpp:38:20: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
38 | rep(i, m) scanf("%d", &S[i]), --S[i];
| ~~~~~^~~~~~~~~~~~~
main.cpp:39:20: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
39 | rep(i, m) scanf("%d", &T[i]), --T[i];
| ~~~~~^~~~~~~~~~~~~
main.cpp:40:20: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
40 | rep(i, m) scanf("%d", &Y[i]);
| ~~~~~^~~~~~~~~~~~~
main.cpp:41:20: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
41 | rep(i, m) scanf("%d", &M[i]);
| ~~~~~^~~~~~~~~~~~~
ソースコード
#include <bits/stdc++.h>
#define For(i, a, b) for(int (i)=(int)(a); (i)<(int)(b); ++(i))
#define rFor(i, a, b) for(int (i)=(int)(a)-1; (i)>=(int)(b); --(i))
#define rep(i, n) For((i), 0, (n))
#define rrep(i, n) rFor((i), (n), 0)
#define fi first
#define se second
using namespace std;
typedef long long lint;
typedef unsigned long long ulint;
typedef pair<int, int> pii;
typedef pair<lint, lint> pll;
template<class T> bool chmax(T &a, const T &b){if(a<b){a=b; return true;} return false;}
template<class T> bool chmin(T &a, const T &b){if(a>b){a=b; return true;} return false;}
template<class T> T div_floor(T a, T b){
if(b < 0) a *= -1, b *= -1;
return a>=0 ? a/b : (a+1)/b-1;
}
template<class T> T div_ceil(T a, T b){
if(b < 0) a *= -1, b *= -1;
return a>0 ? (a-1)/b+1 : a/b;
}
constexpr lint mod = 1e9+7;
constexpr lint INF = mod * mod;
constexpr int MAX = 1510;
struct edge{
int to, cost, time;
edge(int to, int c, int t): to(to), cost(c), time(t){}
};
int n, C, m, S[MAX], T[MAX], Y[MAX], M[MAX], d[55][310];
vector<edge> G[55];
int main(){
scanf("%d%d%d", &n, &C, &m);
rep(i, m) scanf("%d", &S[i]), --S[i];
rep(i, m) scanf("%d", &T[i]), --T[i];
rep(i, m) scanf("%d", &Y[i]);
rep(i, m) scanf("%d", &M[i]);
rep(i, m) G[S[i]].emplace_back(T[i], Y[i], M[i]);
rep(i, n)rep(j, C+1) d[i][j] = mod;
d[0][C] = 0;
rep(i, n)rep(j, C+1)if(d[i][j] < mod){
for(auto &e: G[i])if(e.cost <= j){
chmin(d[e.to][j-e.cost], d[i][j] + e.time);
}
}
int ans = mod;
rep(j, C+1) chmin(ans, d[n-1][j]);
printf("%d\n", ans == mod ? -1 : ans);
}
Ricky_pon