7-39 龟兔赛跑

求助有没有大佬帮忙看一下，为什么我在Dev C++上运行是正确的，但是在PTA上没法通过？

#include 

int main()
{
	int mins;
	scanf("%d", &mins);
	int m = mins/10, n = mins%10;
	const char t[]="@_@", r[]="^_^", o[]="-_-";
	int w = 0, s_t = 0, s_r = 0, flag_r = 0, relax_r = 3;
	
	for ( int i=1;i<=m;i++ )
	{
		if ( i>=2 )
		{
			if ( s_r>s_t )
			{
				flag_r = 1;
			}
		}
		if ( flag_r == 1)
		{
			relax_r -= 1;
		}
		if ( relax_r == 0)
		{
			flag_r = 0;
			relax_r = 3;
		}
		
		s_t += 30;
		
		if ( flag_r == 0 )
		{
			s_r += 90;
		}
	}
	
	for ( int i=1;i<=n;i++ )
	{
		s_t += 3;
		if ( flag_r == 0 )
		{
			s_r += 9;
		}
	}
	
	if ( s_t>s_r )
	{
		w = s_t;
		printf("%s", t);
	}
	else
	{
		w = s_r;
		if ( s_t