Submission #305581

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Source Code Expand

#include <stdio.h>

main(){
	int n;
	scanf("%d",&n);
	int a[]={1,10,100,1000,10000,100000,1000000};
	printf("%d\n",a[n]-1);
	for(int i=0;i<a[n];i++){
		for(int j=n-1;j>=0;j--){
			if((i/a[j+1])%2==0)printf("%d",(i/a[j])%10);
			else printf("%d",9-(i/a[j])%10);
		}
		puts("");
	}
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:5:16: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]

Judge Result