Submission #1332032

#	Time	Username	Problem	Language	Result	Execution time	Memory
1332032		nathako9n	Quality Of Living (IOI10_quality)	C++20	Compilation error	0 ms	0 KiB

quality

#include "quality.h"
#include <bits/stdc++.h>
#define endl '\n'
#define ll long long
using namespace std;
const int N1 = 3005;
ll ar[N1+4][N1+4],p[N1+4][N1+4];
int n,m,rr,c;
bool ch(ll x){
    for(int i=1;i<=n;i++)p[i][0]=0;
    for(int i=1;i<=m;i++)p[0][i]=0;
    for(int i=1;i<=n;i++){
        for(int j=1;j<=m;j++){
            p[i][j]=0;
            if(ar[i][j]>x)p[i][j]=1;
            p[i][j]+=p[i-1][j]+p[i][j-1]-p[i-1][j-1];
            if(i<rr||j<c)continue;
            ll va=p[i][j]-p[i-rr][j]-p[i][j-c]+p[i-rr][j-c];
          //  cout<<va<<endl;
            if(va<=(rr*c)/2)return 1;
        }
    }
    return 0;
}

ll sol(){
    for(int i=1;i<=n;i++){
        for(int j=1;j<=m;j++){
            cin>>ar[i][j];
        }
    }
    ll l=1,r=n*m,ans=-1;
    while(l<=r){
        ll mid=l+(r-l)/2;
        if(ch(mid)){
            r=mid-1;
            ans=mid;
        }
        else l=mid+1;
    }

    return ans;
}

ll rectangle(int N,int M,int R,int C){
    n=N;m=M;rr=R;c=C;
    return sol();
}

//int main() {
//    ios_base::sync_with_stdio(0);
//    cin.tie(0);
//    cin>>n>>m>>rr>>c;
//
//
//    return 0;
//}
/*

5 5 3 3
5 11 12 16 25
17 18 2 7 10
4 23 20 3 1
24 21 19 14 9
6 22 8 13 15


*/

Compilation message (stderr)

/usr/bin/ld: /tmp/ccSjxNri.o: in function `main':
grader.cpp:(.text.startup+0xe9): undefined reference to `rectangle(int, int, int, int, int (*) [3001])'
collect2: error: ld returned 1 exit status