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摘要： #include<iostream>using namespace std;int main(){int a,b;int sum=0;cin>>a>>b;for(int i=1;i<=b;i++){sum=sum+i;}return 1;}#include<iostream>using namespace std;int main(){int a,b;int sum=0;cin>>a>>b;for(;a<=b;a++){sum=sum+a;}count<<a<<endl;cout< 阅读全文

摘要： C++#include<iostream>using namespace std;int main(){int a,b;while(cin>>a>>b)cout<<a+b<<endl;return 1;}C#include<stdio.h>#define P 3.1415927main(){ int a,b; while(scanf("%d%d",&a,&b)==2) printf("%d\n",a+b); return 0;}Javaimport java.util 阅读全文