HDOJ3752

water~~~;先让每个孩子拿上２ｇ；再看剩下的是不是偶数即可

#include <stdio.h>#include <string.h>int main(int argc, char *argv[]) {int t;scanf("%d",&t);while(t--){int m,n;scanf("%d%d",&m,&n);m = m - n*2;if(m%2==0)printf("YES\n");elseprintf("NO\n");}return 0;}