Submission #1225819

#	Time	Username	Problem	Language	Result	Execution time	Memory
1225819		mariamtsagareli	Square or Rectangle? (NOI19_squarerect)	C++17	Compilation error	0 ms	0 KiB

squarerect

#include <bits/stdc++.h>
using namespace std;
extern bool inside_shape(int,int);
bool am_i_square(int n,int q){
    int i,j,x1,x2,y1,y2,x0,y0,l,h,m;
    for(i=1;i<=n;i++)
        for(j=1;j<=n;j++)
            if(inside_shape(i,j)){
                x0=i; y0=j; goto f;
            }
    f:
    l=1; h=x0;
    while(l<h){
        m=(l+h)/2;
        if(inside_shape(m,y0)) h=m;
        else l=m+1;
    }
    x1=l;
    l=x0; h=n;
    while(l<h){
        m=(l+h+1)/2;
        if(inside_shape(m,y0)) l=m;
        else h=m-1;
    }
    x2=l;
    l=1; h=y0;
    while(l<h){
        m=(l+h)/2;
        if(inside_shape(x0,m)) h=m;
        else l=m+1;
    }
    y1=l;
    l=y0; h=n;
    while(l<h){
        m=(l+h+1)/2;
        if(inside_shape(x0,m)) l=m;
        else h=m-1;
    }
    y2=l;
    return (x2-x1)==(y2-y1);
}
int main(){
    ios::sync_with_stdio(false);
    cin.tie(NULL);

    int t,n,q;
    cin>>t>>n>>q;
    while(t--){
        bool r=am_i_square(n,q);
        cout<<(r?"YES":"NO")<<"\n";
    }
    return 0;
}

Compilation message (stderr)

/usr/bin/ld: /tmp/ccmJ2V5i.o: in function `main':
grader.cpp:(.text.startup+0x0): multiple definition of `main'; /tmp/ccYvtWUH.o:squarerect.cpp:(.text.startup+0x0): first defined here
collect2: error: ld returned 1 exit status