Submission #1064307

#	Time	Username	Problem	Language	Result	Execution time	Memory
1064307		vjudge1	Knapsack (NOI18_knapsack)	C++17	73 / 100	129 ms	262144 KiB

knapsack

#include<bits/stdc++.h>
#define int long long
#define endl '\n'
using namespace std;
const int maxn = 1e5 + 5;
int n,m;
int a[maxn];
int b[maxn];
int c[maxn];
int dp[maxn][2005];
int res[maxn];
main() {
    ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);

    cin >> m >> n;
    for (int i = 1; i <= n; i++) {
        cin >> b[i] >> a[i] >> c[i];
    }
    for (int i = 1; i <= n; i++) {
        dp[i][0] = 0;
    }
    for (int i = 1; i <= n; i++) {
        for (int j = 1; j <= m; j++) {
            dp[i][j] = dp[i-1][j];
            for (int k = 0; k <= min(c[i],j/a[i]); k++) {
                if (dp[i-1][j-k*a[i]]+b[i]*k > dp[i][j]) {
                    //trace[i][j] = k;
                    dp[i][j] = dp[i-1][j-k*a[i]]+b[i]*k;
                }
            }
        }
    }
    cout << dp[n][m];
}

Compilation message (stderr)

knapsack.cpp:12:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   12 | main() {
      | ^~~~

• Subtask 1: 12 / 12
• Subtask 2: 17 / 17
• Subtask 3: 20 / 20
• Subtask 4: 24 / 24
• Subtask 5: 0 / 27