ProjectEuler/c/0009.c

#include <stdio.h>
#include <stdint.h>

int
main(int argc, const char **argv)
{
	uint64_t res = 0;
	uint64_t a = 1, b = 1, c = 1;
	uint64_t upper_limit = 1000;

	for ( a = 1; a < upper_limit; ++a ) {
		for ( b = 1; b < upper_limit; ++b ) {
			for ( c = 1; c < upper_limit; ++c ) {
				if ( ((a*a) + (b*b)) != (c*c) ) {
					continue;
				}

				if ( (a+b+c) != 1000 ) {
					continue;
				}

				res = a*b*c;
				goto end;
			}
		}
	}

end:
	printf("Result = %ld!\n", res);
	(void) argc; (void) argv;
	return 0;
}