Submission #1103921

#	Time	Username	Problem	Language	Result	Execution time	Memory
1103921		KasymK	Knapsack (NOI18_knapsack)	C++17	37 / 100	1055 ms	35244 KiB

knapsack

#include "bits/stdc++.h"
using namespace std;
#define ff first
#define ss second
#define all(v) v.begin(), v.end()
#define ll long long
#define pb push_back
#define pii pair<int, int>
#define pli pair<ll, int>
#define pll pair<ll, ll>
#define tr(i, c) for(auto i = c.begin(); i != c.end(); ++i)
#define wr puts("----------------")
template<class T>bool umin(T& a,T b){if(a>b){a=b;return 1;}return 0;}
template<class T>bool umax(T& a,T b){if(a<b){a=b;return 1;}return 0;}
const int N = 2005;
ll dp[N];
 
int main(){
    int s, n;
    scanf("%d%d", &s, &n);
    vector<pii> A;
    for(int i = 1; i <= n; ++i){
        int v, w, k;
        scanf("%d%d%d", &v, &w, &k);
        while(k--)
            A.pb({v, w});
    }
    for(auto &to : A)
        for(int i = s; i >= to.ss; --i)
            umax(dp[i], dp[i-to.ss]+to.ff);
    printf("%lld\n", dp[s]);
    return 0;
}

Compilation message (stderr)

knapsack.cpp: In function 'int main()':
knapsack.cpp:20:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   20 |     scanf("%d%d", &s, &n);
      |     ~~~~~^~~~~~~~~~~~~~~~
knapsack.cpp:24:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   24 |         scanf("%d%d%d", &v, &w, &k);
      |         ~~~~~^~~~~~~~~~~~~~~~~~~~~~

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