Submission #1023728

#	Time	Username	Problem	Language	Result	Execution time	Memory
1023728		vjudge1	Knapsack (NOI18_knapsack)	C++17	73 / 100	295 ms	262144 KiB

knapsack

#include <bits/stdc++.h>
using namespace std;
#define int long long
#define pb push_back
#define ff first
#define ss second
#pragma GCC optimize("O3")
#pragma GCC target("avx2")
const int inf = 1e9;
signed main() {
    ios::sync_with_stdio(false);
    cin.tie();
    cout.tie();
    int n, s;
    cin >> s >> n;
    vector<int> v, w;
    for (int i = 0; i < n; i++) {
        int a, b, c;
        cin >> a >> b >> c;
        for (int j = 1; j <= min(c, s); j++) {
            v.pb(a);
            w.pb(b);
        }
    }
    vector<int> dp(s + 1, 0);
    for (int i = 0; i < v.size(); i++) {
        for (int j = s; j >= w[i]; j--) {
            dp[j] = max(dp[j], dp[j - w[i]] + v[i]);
        }
    }
    cout << dp[s];
}

Compilation message (stderr)

knapsack.cpp: In function 'int main()':
knapsack.cpp:26:23: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   26 |     for (int i = 0; i < v.size(); i++) {
      |                     ~~^~~~~~~~~~

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