Description about the Program to check if two strings match where one string contains wildcard characters
Get two strings as input from the user, first with wildcard characters (* and ?) and second without wildcard characters. Then check whether they match or not.
Input
Ta**nt
Talent
Output
Yes they match
C Program to check if two strings match where one string contains wildcard characters
#include<stdio.h>
#include<stdbool.h>
bool checking(char *s1, char * s2)
{
if (*s1 == '\0' && *s2 == '\0')
return true;
if (*s1 == '*' && *(s1+1) != '\0' && *s2 == '\0')
return false;
if (*s1 == '?' || *s1 == *s2)
return checking(s1+1, s2+1);
if (*s1 == '*')
return checking(s1+1, s2) || checking(s1, s2+1);
return false;
}
void testing(char *s1, char *s2)
{
checking(s1, s2)? puts(" Yes "): puts(" No ");
}
int main()
{
char s1[20],s2[20];
printf("Enter first string with wild characters: ");
scanf("%s",s1);
printf("Enter second string without wild characters: ");
scanf("%s",s2);
testing(s1,s2);
return 0;
}
C++ Program to check if two strings match where one string contains wildcard characters
#include<iostream>
#include<stdbool.h>
using namespace std;
bool checking(char *s1, char * s2)
{
if (*s1 == '\0' && *s2 == '\0')
return true;
if (*s1 == '*' && *(s1+1) != '\0' && *s2 == '\0')
return false;
if (*s1 == '?' || *s1 == *s2)
return checking(s1+1, s2+1);
if (*s1 == '*')
return checking(s1+1, s2) || checking(s1, s2+1);
return false;
}
void testing(char *s1, char *s2)
{
checking(s1, s2)? puts(" Yes "): puts(" No ");
}
int main()
{
char s1[20],s2[20];
cout<<"Enter first string with wild characters: ";
cin>>s1;
cout<<"Enter second string without wild characters: ";
cin>>s2;
testing(s1,s2);
return 0;
}
Python Program to check if two strings match where one string contains wildcard characters
def solve(str1,str2):
a,b=len(str1),len(str2)
if a==0 and b==0:
return True
if (a > 1 and str1[0] == '*') and b == 0:
return False
if (a > 1 and str1[0] == '?') or (a != 0 and b !=0 and str1[0] == str2[0]):
return solve(str1[1:],str2[1:]);
if a !=0 and str1[0] == '*':
return solve(str1[1:],str2) or solve(str1,str2[1:])
return False
str1=input('Enter string with wild characters: ')
str2=input('Enter string without wild characters: ')
if (solve(str1,str2)):
print("Yes it matches")
else:
print("No it is not matching")
