WAP to convert given string into uppercase without using strupr() function.

in turboc++
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//program to convert given string into uppercase without strupr()
#include <stdio.h>
#include <stdlib.h>
#include<conio.h>
int main()
{
    char string[100];
    int i;
    printf("enter a string in lowercase\n");
    gets(string);//INPUT
    for(i=0;string[i]!='\0';i++)//LOOP EXECUTION
    {
        if(string[i]!=' ')//CONDITION TESTING
        printf("%c",string[i]-32);//CONVERTING INTO UPPERCASE BY subtracting 32
        else
            printf(" ");//PRINTING SPACE
    }
   getch();
    return 0;
}

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in codeblocks:

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//program to convert given string into uppercase without strupr()

#include <stdio.h>

#include <stdlib.h>

int main()

{

    char string[100];

    int i;

    printf("enter a string in lowercase\n");

    gets(string);//INPUT

    for(i=0;string[i]!='\0';i++)//LOOP EXECUTION

    {

        if(string[i]!=' ')//CONDITION TESTING

        printf("%c",string[i]-32);//CONVERTING INTO UPPERCASE BY subtracting 32

        else

            printf(" ");//PRINTING SPACE

    }

    return 0;

}