Submission #1092555

#	Time	Username	Problem	Language	Result	Execution time	Memory
1092555		AryanPadarthi	Knapsack (NOI18_knapsack)	C++11	37 / 100	1064 ms	348 KiB

knapsack

// Source: https://usaco.guide/general/io

#include <bits/stdc++.h>

using namespace std;

int main() {
	int w;
	int n;
	int mval=0;
	cin >> w >> n;
	vector<long long> points(n);
	vector<int> weight(n);
	vector<int> count(n);
	for (int i = 0; i < n; i++){
		cin >> points[i] >> weight[i] >> count[i];
	}
	vector<long long> dp(w+1,0);
	//dp[0]=1;

	

	for (int i = 0; i < n; i++){
		for (int j = 0; j < count[i]; j++){
			for (int k = dp.size()-1; k > -1; k--){
				if (dp[k] > 0){
					if (k+weight[i]<dp.size()){
						dp[k+weight[i]] = max(dp[k+weight[i]],dp[k]+points[i]);
					}
				}
			}
			if (j==0){
				dp[weight[i]] = max(dp[weight[i]],points[i]);
			}
		}
	}




	for (int i = 0; i < dp.size(); i++){
		if (dp[i]>mval){
			mval = dp[i];
		}
	}
	cout << mval;
}

Compilation message (stderr)

knapsack.cpp: In function 'int main()':
knapsack.cpp:27:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   27 |      if (k+weight[i]<dp.size()){
      |          ~~~~~~~~~~~^~~~~~~~~~
knapsack.cpp:41:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   41 |  for (int i = 0; i < dp.size(); i++){
      |                  ~~^~~~~~~~~~~

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