Submission #1220805

#	Time	Username	Problem	Language	Result	Execution time	Memory
1220805		hmms127	Quality Of Living (IOI10_quality)	C++20	Compilation error	0 ms	0 KiB

quality

#include "quality.h"
#include <bits/stdc++.h>
using namespace std;
#define f2(m,n) for(int i=m;i<n;i++)
#define f4(m,n) for(int j=m;i<n;j++)
const int N=3e3+5;
int pref[N][N];
int rectangle(int R,int C,int H,int W,int Q[3001][3001]){
	int l=1,r=R*C,ans=0;
	while(l<=r){
	    int mid=(l+r)/2;
	    bool ok=0;
	    f2(1,R+1,1){
	        f3(1,C+1,1){
	            pref[i][j]=pref[i-1][j]+pref[i][j-1]-pref[i-1][j-1]+(Q[i-1][j-1]>mid);
	            if(i>=H&&j<=W){
	                if((pref[i][j]+pref[i-H][j-W]-pref[i-H][j]+pref[i][j-W])<=((H*W)/2)){
	                    ok=1;
	                    goto done;
	                }
	            }
	        }
	    }
	    done:;
	    if(ok)ans=mid,r=mid-1;
	    else l=mid+1;
	}
}

Compilation message (stderr)

quality.cpp:13:23: error: macro "f2" passed 3 arguments, but takes just 2
   13 |             f2(1,R+1,1){
      |                       ^
quality.cpp:4: note: macro "f2" defined here
    4 | #define f2(m,n) for(int i=m;i<n;i++)
      | 
quality.cpp: In function 'int rectangle(int, int, int, int, int (*)[3001])':
quality.cpp:13:13: error: 'f2' was not declared in this scope
   13 |             f2(1,R+1,1){
      |             ^~
quality.cpp:28:1: warning: no return statement in function returning non-void [-Wreturn-type]
   28 | }
      | ^