湖南大学第十四届ACM程序设计大赛 G a+b+c+d=?

链接:https://ac.nowcoder.com/acm/contest/338/G
来源:牛客网

时间限制:C/C++ 1秒,其他语言2秒
空间限制:C/C++ 32768K,其他语言65536K
64bit IO Format: %lld

题目描述

This is a very simple problem! Your only job is to calculate a + b + c + d!

输入描述:

There are several cases.

In the first line, there is a single integer T.(T <= 200)

In the next T lines, each line contains four integers a, b, c and d(-2^61 <= a,b,c,d <=2^61)

输出描述:

output T lines.

Each line output one integer represent the answer of a + b + c + d

示例1

输入

复制

1
1 2 3 4

输出

复制

10

分析:考察对于长整型数据范围的认知,直接加法是会出现错误的,需要在a,b,c,d都等于2^61时特判直接输出2^63,其他情况直接输出结果即可

#include<iostream>
using namespace std;
int main()
{
	int c;cin>>n;
	while(n--)
	{
		long long a,b,c,d;
		cin>>a>>b>>c>>d;
		if(a==2305843009213693952&&b==2305843009213693952&&c==2305843009213693952&&d==2305843009213693952)
		cout<<"9223372036854775808"<<endl;
		else
		cout<<a+b+c+d<<endl;
	}
 } 

当然也可以用Python来解此题(一开始我以为是大数模拟,后来发现用Python就行了)

T=int (raw_input().strip())
for case in range(T):
    a,b,c,d=map(int,raw_input().strip().split())
    print a+b+c+d

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转载自blog.csdn.net/basketball616/article/details/86258846
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