Convert lowercase to uppercase using string in C

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This program is about convert and print the given string small to capital using for loops.

Source Code

#include<stdio.h>
int main()
{
  int i;
  char a[100];
  printf("\nEnter the First String:");
  gets(a);
  printf("\nGiven First String:");
  puts(a);
  for(i=0;a[i]!='\0';i++)
  {
    if(a[i]>=97&&a[i]<=122)
    {
      a[i]-=32;
    }
  }
  printf("\nUppercase Value is:%s",a);
  return 0;
}

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Output

Enter the First String: tutorjoes
Given First String: tutorjoes
Uppercase Value: TUTORJOES

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