C déclaration de pause

// Program to calculate the sum of numbers (10 numbers max)
// If the user enters a negative number, the loop terminates
#include <stdio.h>
int main() {
   int i;
   double number, sum = 0.0;
   for (i = 1; i <= 10; ++i) {
      printf("Enter n%d: ", i);
      scanf("%lf", &number);
      // if the user enters a negative number, break the loop
      if (number < 0.0) {
         break;
      }

      sum += number; // sum = sum + number;
   }
   printf("Sum = %.2lf", sum);
   return 0;
}
SAMER SAEID