제출 #713613

#제출 시각아이디문제언어결과실행 시간메모리
713613NNerverKnapsack (NOI18_knapsack)C++14
73 / 100
3 ms328 KiB
#include <bits/stdc++.h> using namespace std; const int MAXN = 2e3 + 10; const int INF = 0x3f3f3f3f; const int MOD = 1e9+7; int N,S; int v[MAXN],w[MAXN],k[MAXN]; long long dp[MAXN]; void update(long long V,int W){ for(int i=S;i>=W;i--){ dp[i]=max(dp[i],dp[i-W]+V); } } int main(){ scanf("%d%d",&S,&N); for(int i=1;i<=N;i++){ scanf("%d%d%d",&v[i],&w[i],&k[i]); } for(int i=1;i<=N;i++){ int K=min(k[i],S/w[i]); int cnt=1; for(;cnt<=K;cnt*=2){ update((long long)v[i]*cnt,w[i]*cnt); K-=cnt; } update((long long)v[i]*K,w[i]*K); } printf("%lld\n",dp[S]); return 0; }

컴파일 시 표준 에러 (stderr) 메시지

knapsack.cpp: In function 'int main()':
knapsack.cpp:19:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   19 |     scanf("%d%d",&S,&N);
      |     ~~~~~^~~~~~~~~~~~~~
knapsack.cpp:21:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   21 |         scanf("%d%d%d",&v[i],&w[i],&k[i]);
      |         ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~
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