654. 时间转换
define _CRT_SECURE_NO_WARNINGS
include[HTML_REMOVED]
int main()
{
int n = 0, a = 0, b = 0, c = 0;
scanf(” %d”,& n);
a = n / 3600;
b = (n - a * 3600) / 60;
c = n - a * 3600 - b * 60;
printf("%d:%d:%d ", a, b, c);
return 0;
}