WAP to convert a lowercase string to uppercase string.

#include<stdio.h>
#include<stdlib.h>
#include<string.h>

main()
{
 char str[10];
 char upr[10];
 int n,i;
printf("enter the string in lower case");
scanf("%s",str);

n=strlen(str);

for(i=0;i<=n-1;i++)
upr[i]=str[i]-32;

printf("%s",upr);
printf("\n");

 system("pause");
}
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