제출 #715555

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
715555		vjudge1	쌀 창고 (IOI11_ricehub)	C++14	컴파일 에러	0 ms	0 KiB

ricehub

#include<bits/stdc++.h>
using namespace std;

int besthub(int n,int l,int x[],int b){
    int cost,mid,mx_cost,ans;
    vector<int> prefixSum(l,0);

    for(int i=1;i<=n;i++)prefixSum[i] = prefixSum[i-1]+x[i-1];
    //for(int i=1;i<=n;i++)cout<<prefixSum[i]<<" "; cout<<endl;
    for(int st=1;st<=n;st++){
        for(int en=st;en<=n;en++){
            mid = (st+en)/2;
            cost = (mid-st)*x[mid]-(prefixSum[mid-1]-prefixSum[st-1]) + (prefixSum[en]-prefixSum[mid])-(en-mid)*x[mid];

            if(cost <= b)ans = max(ans,en-st+1);
            //cout<<st<<" "<<en<<" "<<cost<<endl;
        }
    }
    return ans;


}

컴파일 시 표준 에러 (stderr) 메시지

ricehub.cpp: In function 'int besthub(int, int, int*, int)':
ricehub.cpp:5:18: warning: unused variable 'mx_cost' [-Wunused-variable]
    5 |     int cost,mid,mx_cost,ans;
      |                  ^~~~~~~
ricehub.cpp:19:12: warning: 'ans' may be used uninitialized in this function [-Wmaybe-uninitialized]
   19 |     return ans;
      |            ^~~
/usr/bin/ld: /tmp/cco5RojQ.o: in function `main':
grader.cpp:(.text.startup+0xae): undefined reference to `besthub(int, int, int*, long long)'
collect2: error: ld returned 1 exit status