Submission #527976

#	Time	Username	Problem	Language	Result	Execution time	Memory
527976		juankipedia	Knapsack (NOI18_knapsack)	C++14	17 / 100	3 ms	332 KiB

knapsack

# include <bits/stdc++.h>
using namespace std;
/*************************************************************************************/
# define endl "\n"
# define io_boost std::ios_base::sync_with_stdio(false);cin.tie(nullptr);cout.tie(nullptr);
typedef unsigned long long int ulli;
typedef long long int lli; 
/*************************************JUANKIPEDIA*************************************/

const int MAXN = 100005;
lli N, S, V[MAXN], W[MAXN], K[MAXN];

int main(){
    io_boost;
	cin >> S >> N;
	for(lli i = 0; i < N; i++) cin >> V[i] >> W[i] >> K[i];
	vector<lli> dp(S + 5, 0);
	for(lli i = 0; i < N; i++){
		vector<lli> DP;
		DP = dp;
		for(lli j = K[i]; j >= 1; j--){
			lli w = W[i] * j;
			if(w > S) break;
			for(lli k = S - w; k >= 0; k--){
				DP[k + w] = max(DP[k + w], dp[k] + (V[i] * j));
			}
		}

		for(int j = 0; j < dp.size(); j++) dp[j] = max(dp[j], DP[j]);
	}
	lli ans = 0;
	for(int i = 0; i <= S; i++){
		ans = max(ans, dp[i]);
		if(ans == 5500) cout << " ===== " << i << endl;
	}
	cout << ans << endl;
	return 0;
}

Compilation message (stderr)

knapsack.cpp: In function 'int main()':
knapsack.cpp:29:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   29 |   for(int j = 0; j < dp.size(); j++) dp[j] = max(dp[j], DP[j]);
      |                  ~~^~~~~~~~~~~

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