3173.txt

北大ACM题目例程 详细的解答过程 程序实现 算法分析

Source

Problem Id:3173  User Id:fzk 
Memory:24K  Time:0MS
Language:C++  Result:Accepted

Source 

#include <stdio.h>

int main( ) {
	int n, s, i, j;

	scanf( "%d%d", &n, &s );

	for( i=0; i<n; i++ ) {
		for( j=0; j<n; j++ ) {
		
			if( j<i ) printf( " " );
			else printf( "%d", (s-1+(1+j)*j/2+i)%9+1 );

			if( j == n-1 )printf( "\n" );
			else printf( " " );
		}
	}

	return 0;
}