Sum of all numbers between 100 and 200 using do while loop

C Program to find sum of all numbers between 100 and 200 using do while loop.

Expected output is sum of 100 + 101 + 102 + .. + 199 + 200.

Program Code

#include<stdio.h>

int main()

{

  int number=100, sum=0;

  

  do{

    sum = sum + number;

    number = number + 1;

  }while(number<=200);

  printf("Sum of all numbers between 100 to 200:"); 

  printf(" %d", sum);

  return 0;

}

Output of the program

Sum of all numbers between 100 to 200: 15150 

* * * * *

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C program to print Z to A using for loop

C Program to print Z to A using for loop

Program Code 1:

#include<stdio.h>

int main()

{

  int i;

  for(i='Z'; i>='A'; i--)

    printf("%c", i);

  

  return 0;

}

Output of the program:

ZYXWVUTSRQPONMLKJIHGFEDCBA

* * * * *

Same program can also be generated using following code.

Program Code 2:

#include<stdio.h>

int main()

{

    int i;

    //90 is ASCII value of Z

    for(i=90; i>=65; i--)

        printf("%c", i);

    

    return 0;

}

Output of the program:

ZYXWVUTSRQPONMLKJIHGFEDCBA

* * * * *

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