摘要：
#include <iostream>using namespace std;int how(int a,int b){ int sim,dou,sum=1; sim=a+1; dou=a+2; if(sim==b || dou==b) { return sum; } else { sum+=how(sim,b)+how(dou,b); } return sum; }int main(){ int n; while(scanf("%d",&n)!=EOF) { while(n) { int a,b; cin>>a; cin>>b; 阅读全文