PAT Grade B 1011 A+B and C (15 points)

topic content

Given 3 integers A, B, and C in the interval [−231,231], determine whether A+B is greater than C.

Input format:

Input line 1 gives a positive integer T (≤10), the number of test cases. Then T groups of test cases are given, each on a line, and A, B, and C are given in order. Integers are separated by spaces.

Output format:

For each set of test cases, output  Case #X: true if A+B>C in one line, else output  Case #X: false, where  X is the test case number (starting from 1).

Input sample:

4
1 2 3
2 3 4
2147483647 0 2147483646
0 -2147483648 -2147483647

no blank line at the end

Sample output:

Case #1: false
Case #2: true
Case #3: true
Case #4: false

no blank line at the end

Problem solving ideas

Nothing to say, use long to record data and compare the size

Detailed code

#include <iostream>
#include <algorithm>
using namespace std;
int main(){
    cin.tie();  //减少cin读入数据时的时间损耗
    int n;
    long long int a=0,b=0,c=0;
    cin>>n;
    for(int i=0;i<n;i++){
        cin>>a>>b>>c;
        if(a+b>c){
            cout<<"Case #"<<i+1<<": true"<<endl;
        }
        else{
            cout<<"Case #"<<i+1<<": false"<<"\n";
        }
    }
}