#include <stdio.h>
#include <stdlib.h>
#include <string.h>
main()
{
char aa[100]="passwd1";
char bb[100]="passwd2";
char cc[100]="passwd3";
char dd[100]="passwd4";
char ee[100];
int i;
for (i=0;i<=3;i++)
{
printf("Please input PASSWORD:");
scanf("%s",ee);
if(strcmp(aa,ee)==0)
{printf("correct");break;}
else if (strcmp(bb,ee)==0)
{printf("correct");break;}
else if (strcmp(cc,ee)==0)
{printf("correct");break;}
else if (strcmp(dd,ee)==0)
{printf("correct");break;}
else
printf("%s\n","incorrect");
}
system("pause");
}