67 lines
1002 B
C++
67 lines
1002 B
C++
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#include <iostream>
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#include <vector>
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#include <string>
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#include <fstream>
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#include <algorithm>
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using namespace std;
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class Student{
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public:
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string nume, prenume, grupa;
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string stringify(){
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return nume+" "+prenume+" "+grupa;
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}
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};
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bool studentCompare(const Student a, const Student b){
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if(a.nume == b.nume){
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if(a.prenume <= b.prenume){
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return true;
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}
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else{
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return false;
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}
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}
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else if(a.nume <= b.nume){
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return true;
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}
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else{
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return false;
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}
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}
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int main(){
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ios::sync_with_stdio(false);
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fstream f;
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f.open("an.txt", ios_base::in);
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if(!f.is_open()){
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cout<<"Error: file does not exist";
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return 1;
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}
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vector<Student> v;
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string buff;
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while(f>>buff){
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Student tmp;
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tmp.nume = buff;
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f>>tmp.prenume;
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f>>tmp.grupa;
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v.push_back(tmp);
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}
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f.close();
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sort(v.begin(), v.end(), studentCompare);
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f.open("an_sort.txt", ios_base::out);
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for(vector<Student>::iterator it = v.begin(); it < v.end(); it++){
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f<<it->stringify();
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f<<"\n";
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}
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f.close();
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return 0;
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}
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