제출 #1047828

#제출 시각아이디문제언어결과실행 시간메모리
1047828NewtonabcKnapsack (NOI18_knapsack)C++14
100 / 100
43 ms4100 KiB
#include<bits/stdc++.h> #define mp make_pair using namespace std; const int N=2e3+10; vector<pair<int,int> > v; vector<pair<int,pair<int,int> > > inp; int dp[N],wg[N]; int main(){ ios_base::sync_with_stdio(0); cin.tie(0); int s,n; cin>>s >>n; for(int i=0;i<n;i++){ int a,b,c; cin>>a >>b >>c; inp.push_back(mp(a,mp(b,c))); //value,weight,number } sort(inp.begin(),inp.end(),greater<pair<int,pair<int,int> > >()); for(int i=0;i<n;i++){ int val=inp[i].first,w=inp[i].second.first,num=inp[i].second.second; if(w>s) continue; while(wg[w]+w<=s && num){ num--; wg[w]+=w; v.push_back(mp(val,w)); } } for(int i=0;i<v.size();i++){ int val=v[i].first,w=v[i].second; for(int j=s;j>=1;j--){ if(j-w>=0) dp[j]=max(dp[j],dp[j-w]+val); } } cout<<dp[s]; }

컴파일 시 표준 에러 (stderr) 메시지

knapsack.cpp: In function 'int main()':
knapsack.cpp:29:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   29 |  for(int i=0;i<v.size();i++){
      |              ~^~~~~~~~~
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