Submission #3651702

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Source Code Expand

#include <bits/stdc++.h>
using namespace std;
int n,m,a[75][75],b[75][75],dx[4]={0,1,0,-1},dy[4]={1,0,-1,0},ans;
int main(void){
    scanf("%d%d",&n,&m);
    for(int i=0;i<n;i++){
		for(int j=0;j<m;j++){
			cin>>a[i][j];
		}
	}
	for(int i=0;i<n;i++){
		for(int j=0;j<m;j++){
			cin>>b[i][j];
		}
	}
	for(int i=0;i<n;i++){
		for(int j=0;j<m;j++){
			if(!(a[i][j]==1&&b[i][j]!=1))continue;
			for(int k=0;k<4;k++){
				int y=i+dy[k],x=j+dx[k];
				if(y>=0&&y<n&&x>=0&&x<m&&a[y][x]==0&&b[y][x]==1){
					swap(a[i][j],a[y][x]);
					ans++;
				}
			}
		}
	}
	for(int i=0;i<n;i++)for(int j=0;j<m;j++)if(a[i][j]!=b[i][j])ans++;
	cout<<ans<<endl;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:5:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d%d",&n,&m);
                        ^

Judge Result