Monday, December 1, 2025

Input numbers. Calculate Sum and Average (Mean) with using while loop

#include<stdio.h>
main()
{
     int i=0,n,sum=0;
     float avg=0.0;
     while(1)
      {
  printf("Enter Numbers. (-999 Exit) : ");
          scanf("%d",&n);
          if(n == -999)
                break;
          sum+=n;
          ++i;
       }
       avg=sum/(float)i;
       printf("Sum=%d\nAvg=%f\n",sum,avg);
}


Output



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