偷鸡30.0

拿着AWM打人妖  •  17小时前


include <stdio.h>

int main() {

int y, x, i, n, m;
scanf("%d %d", &n, &m);
i=0;
for (int x = 0; x <= n; x++) {
	for (int y = 0; y <= n; y++) {
		if (x + y == n && 2 * x + 4 * y == m) {
			i = 1;
			printf("%d %d\n", x, y);
		}
	}
} if(i==0) {
	printf("NULL");
}
return 0;

}


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