[Accept] 10110 Light, more light

I got accept from Judge Server.

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#include <stdio.h> #include <math.h> int main(void) { unsigned long number, i, light=OFF; unsigned long maxNum = (unsigned long)(pow((double)2,(double)32)-1); while( scanf("%u", &number) && number ) { if( number > maxNum ){ //printf("!!! %u\n", number); return 0; } light = (unsigned long)sqrt(number); if( light*light == number ) printf("yes\n"); else printf("no\n"); light = OFF; } return 0; }