题解 | #A + B Is Overflow#
A + B Is Overflow
https://ac.nowcoder.com/acm/problem/14321
题目描述
Judge whether the sum of A and B will exceed the range of 32-bit signed integer.
输入描述:
There are multiple test cases. The first line of each test case is a positive integer T, indicating the number of test cases.
For each test case, there is only one line including two 32-bit signed integers A and B.
For each test case, there is only one line including two 32-bit signed integers A and B.
输出描述:
For each test case, output one line. If the sum of A and B will exceed the range of integer, print "Yes", else print "No".
如果int（a+b）等于long long(a+b)，则a与b的和不爆int
#include<iostream>
using namespace std;
int main()
{
int t;
cin>>t;
long long a,b;
while(t--)
{
cin>>a>>b;
int sum=a+b;
if(sum==a+b) cout<<"No"<<endl;
else cout<<"Yes"<<endl;
}
return 0;
} 
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