This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
#include <bits/stdc++.h>
#define z exit(0)
typedef long long ll;
using namespace std;
const int N = 2555;
const ll inf = 1e18;
char s[N];
ll dp[10001][10001];
int A, B, C, n, vis[10001][10001];
signed main(){
scanf("%d %s %d %d %d", &n, s, &A, &B, &C);
for(int i = 0; i<=n; ++i) fill(dp[i], dp[i]+10001, inf);
using T = tuple<ll,int,int>;
priority_queue<T, vector<T>, greater<T>> pq;
pq.emplace(dp[0][0] = 0, 0, 0);
while(!pq.empty()){
ll dis; int i, j; tie(dis, i, j) = pq.top(); pq.pop();
if(vis[i][j]) continue; //vis[i][j] = 1;
if(dp[i][j] >= inf) continue;
if(i+1 <= 1e4 && dp[i+1][j] > dp[i][j] + A) pq.emplace(dp[i+1][j] = dp[i][j] + A, i+1, j);
if(i+j <= 1e4 && dp[0][i+j] > dp[i][j] + B) pq.emplace(dp[0][i+j] = dp[i][j] + B, 0, i+j);
if(i+j <= 1e4 && dp[i+j][j] > dp[i][j] + C) pq.emplace(dp[i+j][j] = dp[i][j] + C, i+j, j);
}
printf("%lld", *min_element(dp[n], dp[n]+10001));
}
Compilation message (stderr)
copypaste3.cpp: In function 'int main()':
copypaste3.cpp:11:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
11 | scanf("%d %s %d %d %d", &n, s, &A, &B, &C);
| ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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