Submission #329072

#	Time	Username	Problem	Language	Result	Execution time	Memory
329072		urosk	Quality Of Living (IOI10_quality)	C++14	Compilation error	0 ms	0 KiB

quality

#include <bits/stdc++.h>
#define ll long long
#define ull unsigned long long
#define inf 1e15
#define pb push_back
#define popb pop_back
#define fi first
#define sc second
#define pii pair<int,int>
#define all(a) a.begin(),a.end()
#define rall(a) a.begin(),a.end(),greater<int>()
using namespace std;
int n,m,h,w;
#define maxn 3005
int a[maxn][maxn];
int b[maxn][maxn];
bool check(int x){
    for(int i = 1;i<=n;i++) fill(b[i],b[i]+m,0);
    for(int i = 1;i<=n;i++){
        for(int j = 1;j<=m;j++){
            b[i][j] = b[i-1][j]+b[i][j-1]-b[i-1][j-1]+(a[i][j]<=x?1:-1);
            //cout<<b[i][j]<< " ";
        }
        //cout<<"\n";
    }
    for(int i = h;i<=n;i++){
        for(int j = w;j<=m;j++){
            if(b[i][j]-b[i-h][j]-b[i][j-w]+b[i-h][j-w]>0){
                /*cout<<a[i][j]<< " "<<a[i-h][j]<<" "<<a[i][j-w]<<" "<<
                cout<<i<< " "<<j<<"\n";*/
                return 1;
            }
        }
    }
    return 0;
}
int bs(){
    int l = 1,r=maxn*maxn,rez=maxn*maxn,mid;
    while(l<=r){
        mid = (l+r)/2;
        //cout<<"mid: "<<mid<<"\n";
        if(check(mid)){
            r = mid-1;
            rez = mid;
        }else l = mid+1;
    }
    return rez;
}
int main(){
	ios_base::sync_with_stdio(false);cerr.tie(0);cout.tie(0);cin.tie(0);
    cin >> n >> m >> h >> w;
    for(int i = 1;i<=n;i++){
        for(int j = 1;j<=m;j++) cin >> a[i][j];
    }
    cout<<bs();
}

Compilation message (stderr)

/tmp/ccr22J1R.o: In function `main':
grader.cpp:(.text.startup+0x0): multiple definition of `main'
/tmp/ccmS4vJK.o:quality.cpp:(.text.startup+0x0): first defined here
/tmp/ccr22J1R.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