The following program segment should input and sum integers
     The following program segment should input and sum integers from the user until the sentinel value, -1 is entered.  int total = 0;  int input;  while (input ! = -1)  {cin >> input;  total += input;} 
  
  Solution
#include <iostream>
 using namespace std;
int main() {
 int i;
 int sum=0;
    while(1){
      
 cout << \"Please enter an integer value: \";
 cin >> i;
 if(i!=-1)
 sum+=i;
 else
 break;
    }
    cin >>sum;
    return 0;
 }
output:Please enter integer value:1
Please enter integer value:2
Please enter integer value:-1
3

