题解：直接计算即可。

#include <cstdio>#include <algorithm>using namespace std;int main(){    int T;    scanf("%d",&T);    while(T--){        int a,b,c; bool flag=1;        scanf("%d%d%d",&a,&b,&c);        if(a==c||b==c){puts("Yes");continue;}        while(b<c){            a+=b; swap(a,b);            if(b==c){puts("Yes");flag=0;}        }if(flag)puts("No");    }return 0;}

HDU 5018 Revenge of Fibonacci