开了O2会RE,求助
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开了O2会RE,求助
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蜀都客车楼主2021/2/28 10:48
#include<cstdio>

inline int print( int n )
{
	static char buf[30], *tail = buf;
	if( n < 10 )
	{
		putchar( '0' );
	}
	for( ; n; n /= 10 ) *++tail = (n % 10) ^ 48;
	for( ; tail != buf; --tail ) putchar(*tail);
}

int square( int n )
{
	for( register int i = 1; i <= n*n; ++i )
	{
		print( i ); 
		if( i % n == 0 ) putchar( '\n' );
	}
}

int js( int n )
{
	int ans = 0;
	for( register int i = 1; i <= n; ++i )
		ans += i;
	return ans;
}

int triangle( int n )
{
	int m = 1;
	for( int i = 1; i <= n; i++ ) 
	{
		for( int j = 1; j <= n-i; j++ ) 
			putchar( ' ' ), putchar( ' ' );
		for( ;m <= i*(i+1)/2; )
			print( m ), m++;
		putchar( '\n' );
	}
}

int main()
{
	int n;
	scanf( "%d", &n );
	square( n );
	putchar( '\n' );
	triangle( n );
	return 0;
}

2021/2/28 10:48
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