1167: Triple string sort

Let me ask first, have your final exam results come out? Anyway, our class has come out [crying]. . .

Eat "Fried Meat with Bamboo Shoots" tonight, not to mention how sour it is. . .

Let’s talk about the results first (not Versailles!!!): Grade 6, Chinese 97, Mathematics 99, English 97, the third in the class, the first in the single Chinese class, the grade is unknown

Do you think it's good, but! ! ! Parents don't think so. . .

Alright, let's not talk about being sad, let's get back to the topic

topic description

Input three strings and output them in ascending order

enter

3 lines of string

output

Output in 3 lines from small to large

sample input

cde

afg

abc

sample output

abc

afg

cde

Is it very simple, I think so, but I need to talk about getline in C++ first

What is the header file of getline? ? ?

The getline function is the same as the header file required by the string, and the getline function needs to be called in the header file #include<string>

Introduction to getline

getline is a C++ standard library function; it has two forms, one is the input stream member function in the header file <istream>; the other is an ordinary function in the header file <string>;

It encounters the following situations that will cause the generated string to end:

(1) to the end of the file, (2) the delimiter of the function is encountered, (3) the input reaches the maximum

for example:

#include<iostream>
#include<bits/stdc++.h>
#include<string>
using namespace std;
int main(){
    string s;
    cout<<"输入字符串："; 
    getline(cin,s);
    cout<<"输出字符串："; 
    cout<<s;
    return 0;
}

Finally, let's talk about its prototype

The getline function prototype getline(std::cin, string s, char ch), indicates that the character ch is used to end the reading of the string

It is enough for getline to understand these, let’s look at the AC code next .

#include <bits/stdc++.h>  
using namespace std;
int main()
{
    string x,y,z;
    getline(cin,x);
    getline(cin,y);
    getline(cin,z);
    if(x>y&&x>z)
        if(y>z)
            cout<<z<<endl<<y<<endl<<x;
    if(x>y&&x>z)
        if(z>y)
            cout<<y<<endl<<z<<endl<<x;
    if(y>x&&y>z)
        if(x>z)
            cout<<z<<endl<<x<<endl<<y;
    if(y>x&&y>z)
        if(z>x)
            cout<<x<<endl<<z<<endl<<y;
    if(z>x&&z>y)
        if(x>y)
            cout<<y<<endl<<x<<endl<<z;
    if(z>x&&z>y)
        if(y>x)
            cout<<x<<endl<<y<<endl<<z;
}