제출 #484680

#제출 시각아이디문제언어결과실행 시간메모리
484680NcodeKnapsack (NOI18_knapsack)C++14
0 / 100
261 ms259716 KiB
#include <bits/stdc++.h> using namespace std; int dp[20005][20005]; const int inf = 1e9+5; int main(){ int S, n; cin>>S>>n; int v, w, k; vector<pair<int, int>> a; for(int i=0;i<n;i++){ cin>>v>>w>>k; while(k--) a.push_back({v, w}); } // for(int i=0;i<n;i++){ // for(int j=0;j<=S;j++){ // dp[i][j] = inf; // } // } dp[0][0] = 0; for(int i=0;i<a.size();i++){ for(int sum = S; sum >= 0; sum --){ dp[i][sum] = dp[i-1][sum]; if(sum >= a[i].second && dp[i-1][sum - a[i].second] + a[i].first > dp[i][sum]){ dp[i][sum] = dp[i-1][sum - a[i].second] + a[i].first; } } } // for(int i=0;i<n;i++){ // for(int j = 0; j<=S; j++){ // cout<<dp[i][j]<<" "; // }cout<<endl; // } cout<<dp[a.size() - 1][S]<<'\n'; }

컴파일 시 표준 에러 (stderr) 메시지

knapsack.cpp: In function 'int main()':
knapsack.cpp:23:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   23 |  for(int i=0;i<a.size();i++){
      |              ~^~~~~~~~~
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