OJ Board

#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <ctype.h>
char *lwr(char *string)
{
char *real_string;
real_string=string;
while(*string){
*string=tolower(*string);
string++;
}
return(real_string);
}
struct node{
char name[30];
int pt;
int gm;
int win;
int tie;
int ...