제출 #208033

#제출 시각아이디문제언어결과실행 시간메모리
208033rzbt수열 (APIO14_sequence)C++14
50 / 100
2090 ms131076 KiB
#include <bits/stdc++.h> #define mp make_pair #define pb push_back #define F first #define S second #define all(x) x.begin(),x.end() #define MAXN 100005 #define MAXK 205 typedef long long ll; using namespace std; ll n,u; ll dp[MAXN][MAXK]; ll niz[MAXN]; ll suma[MAXN]; ll sec[MAXN][MAXK]; ll resi(ll d,ll k){ if(dp[d][k]!=-1)return dp[d][k]; if(k==0 || d==1){ //printf(" %lld %lld %lld %lld\n",l,d,k,dp[l][d][k]); return dp[d][k]=0; } for(ll i=k+1;i<=d;i++){ ll tr=suma[i-1]*(suma[d]-suma[i-1])+resi(i-1,k-1); if(tr>dp[d][k]){ sec[d][k]=i-1; dp[d][k]=tr; } } //printf(" %lld %lld %lld %lld\n",l,d,k,dp[l][d][k]); return dp[d][k]; } int main() { scanf("%lld %lld", &n, &u); for(ll i=0;i<=n;i++){ for(ll j=0;j<=u;j++){ dp[i][j]=-1; } } for(ll i=1;i<=n;i++) scanf("%lld",niz+i); for(ll i=1;i<=n;i++) suma[i]=suma[i-1]+niz[i]; for(int k=1;k<=u;k++){ for(int d=k+1;d<=n;d++){ for(ll i=k+1;i<=d;i++){ ll tr=suma[i-1]*(suma[d]-suma[i-1])+resi(i-1,k-1); if(tr>dp[d][k]){ sec[d][k]=i-1; dp[d][k]=tr; } } } } printf("%lld\n",resi(n,u)); ll poc=n; for(ll i=u;i>0;i--){ poc=sec[poc][i]; printf("%lld ",poc); } return 0; }

컴파일 시 표준 에러 (stderr) 메시지

sequence.cpp: In function 'int main()':
sequence.cpp:41:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%lld %lld", &n, &u);
     ~~~~~^~~~~~~~~~~~~~~~~~~~~
sequence.cpp:48:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%lld",niz+i);
         ~~~~~^~~~~~~~~~~~~~
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