Pat class B 1011 C language

1011. A+B and C (15)

Given the interval [-2³¹, 2³¹] Internal 3 It's an integer A、B and C, Please judge A+B Is it greater than C.

Input format ：

Enter the first 1 Line gives a positive integer T(<=10), Is the number of test cases . Subsequently given T Group test cases , One row for each group , The order is given A、B and C. Integers are separated by spaces .

Output format ：

For each group of test cases , Output in one line “Case #X: true” If A+B>C, Otherwise output “Case #X: false”, among X Is the number of the test case （ from 1 Start ）.

sample input ：

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

sample output ：

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

Ideas ： Just judge directly , Attention, because the process may exceed int Value range of , Therefore, using long int Declare variables

Code ：

#include "stdio.h"

int main(){
	int x;
	long int a,b,c;
	int i;
	scanf("%d",&x);
	for(i = 0; i < x; i++)
	{
		scanf("%ld",&a);
		scanf("%ld",&b);
		scanf("%ld",&c);
		if(a + b > c)
		{
			printf("Case #%d: true\n",i + 1);
		}else
		{
			printf("Case #%d: false\n",i + 1);
		}
	
	}
	return 0;
}