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题目链接:
想今天秋季或者冬季去考pat甲级,开始刷题了,20分的题还是挺水的,加油吧!奥力给!(其实我懒得写博客,所以直接贴代码记录一下

#include<stdio.h>#include<string.h>typedeflonglong ll;
ll a[100],b[100];intmain(){
	ll x,y;scanf("%lld %lld",&x,&y);
	ll sum=x+y;
	ll ct=0;bool flag=0;if(sum<0)flag=1,sum=-sum;while(sum){
		a[++ct]=sum%10;
		sum/=10;}for(ll i=ct;i>=1;i--){
		b[ct-i+1]=a[i];}if(ct<=3)printf("%lld\n",x+y);else{if(flag)printf("-");
		ll tmp=ct%3;for(ll i=1;i<=tmp;i++){printf("%lld",b[i]);}if(tmp)printf(",");for(ll i=tmp+1;i<=ct;i++){printf("%lld",b[i]);if((i-tmp)%3==0&&i!=ct)printf(",");}printf("\n");}scanf("%lld",&x);}

本文标签: 甲级 迈向高分 解密