hdu 1391 Number Steps（规律）

题意：找规律

思路：找规律

#include<iostream>
#include<stdio.h>
using namespace std;

int main(){
    int n,x,y;
    scanf("%d",&n);
    while(n--){
        scanf("%d%d",&x,&y);
        if(x==y)x&?printf("%d\n",x+x-):printf("%d\n",x+x);
        else if(x-y==)x&?printf("%d\n",x+y-):printf("%d\n",x+y);
        else printf("No Number\n");
    }
    return ;
}