View Code of Problem 57

# include<stdio.h>
int main(){
	int n,i,j,k,x;
	scanf("%d",&n);
	int m=2*n-1;
	for(i=1;i<=m;i++){
		k=i;
		if(i>n){
			k=2*n-i;
		}
		x=0;
		for(j=1;j<=m;j++){
			if(j<=n-k){
				printf(" ");
			}
			else if(j>m-n+k){
					
			}
			else{
				if(j>n){
					printf("%d",--x);
				}
				else{
					printf("%d",++x);
				}
			}
		}
		printf("\n");
	}
	return 0;
	
} 

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