# C Program to calculate sum of multiple positive numbers (Stop if user enters negative number)

Get positive integers from user till user enters a negative integer calculate sum of positive integers.

Sample Input 1:

5 6 7 2 1 8 -9

Sample Output 1:

29

Sample Input 2:

3 23 -76

Sample Output 2:

26

#### Program or Solution

` ````
#include<stdio.h>
int main()
{
int num,sum=0;
printf("Enter Postive numbers to sum:");
while(1)
{
scanf("%d",&num);
if(num<0)
{
break;
}
sum=sum+num;
}
printf("%d",sum);
return 0;
}
```

#### Program Explanation

since 1 is always true, scanf statement gets input from user continously, if user enters a negative number it exit from while loop using break statement.