Question

Given two C-string s1 and s2, write an if - else if - else statement to print out message to indicate which string goes first in lexicographic order or two strings are the same.

It must. Be if-else if -else statement c++

Answer 1

Code:

#include <iostream>

//using c string function not c++

#include<string.h>

using namespace std;

void lexical_order(char *s1,char *s2){

//using c string header function strcmp only not c++ one

int c=strcmp(s1,s2);

//strcmp returns three values 1,-1 and 0

if (c==1){

cout<<s2<<" comes first in lexicographic order"<<endl;

}

else if(c==-1){

cout<<s1<<" comes first in lexicographic order"<<endl;

}

else{

cout<<"Two strings are the same."<<endl;

}

}

int main() {

//two string function

char s1[]="Hellb";

char s2[]="Hella";

lexical_order(s1,s2);

}

Output:

Hella comes first in lexicographic order