C++ to c converter

class Solution {
public:
    vector<int> findSwapValues(vector<int>& array1, vector<int>& array2) {
        int s1 = 0, s2 = 0;
        unordered_set<int> s;
        for (int a : array1) s1 += a;
        for (int b : array2) {
            s2 += b;
            s.insert(b);
        }
        int diff = s1 - s2;
        if (diff & 1) {
            return {};
        }
        diff >>= 1;
        for (int a : array1) {
            int b = a - diff;
            if (s.count(b)) {
                return {a, b};
            }
        }
        return {};
    }
};

C++ to c converter

#include<bits/stdc++.h>

using namespace std;

void testfun(map<string, int> mp){
    map<string, int>::iterator it = mp.begin();
    for(; it!=mp.end(); it++){
        cout<<it->first<<":"<<it->second<<" ";
    }
    cout<<endl;
}

int main()
{
    int no, add=0;
    cin>>no;
    int var;
    cin>>var;
    map<string, int> d, h;
    h["F"] = 0;
    while(var--){
        string naam;
        int a, b;
        cin>>naam>>a>>b;
        d[naam] = b/a;
        h[naam] = b;
        add+=b;
    }
    cin>>var;
    while(var--){
        string naam, c1="", c2="";
        cin>>naam;
        int meflux=0;
        while(meflux<naam.length()){
            if(naam[meflux]=='_'){
                c1 = c2;
                c2 = "";
                meflux++;
                continue;
            }
            c2+=naam[meflux++];
        }
        h[c2]+= h[c1];
    }
    //print(days);
    //print(storage);
    map<string, int>::reverse_iterator a= d.rbegin();
    int multiply = 1;
    for(; a!=d.rend(); a++ ){
        int temperature = a->second*multiply;
        if(temperature<no){
            add+=(h[a->first]*(no-temperature));
            multiply++;
        }
    }
    cout<<add;
}

C++ to c converter

#include <bits/stdc++.h>
using namespace std;
int a,b,c,d,i;
class Holiday{
    public:virtual void Expenses()=0;
};
class Citizen:public Holiday{
    public:
    void Expenses(){
        cin>>c;
        for (i=0; i<c; i++){
            cin>>a;
            if (d<a) d=a;
            b=b+a;
        }
        cout<<d*c-b;
    }
};
int main (){
    Citizen obj;
    obj.Expenses();
    return 0;
}

C code to c++ converter

#include <stdio.h>
main ( )
{
char op ;
int n1, n2 ;
printf ("opération souhaitée (+ ou *) ?\n ") ;
scanf ("%c", &op) ;
printf ("donnez 2 nombres entiers : \n") ;
scanf ("%d %d", &n1, &n2) ;
if (op == '+')
printf ("leur somme est : %d \n", n1+n2) ;
else
printf ("leur produit est : %d \n",n1*n2) ;
getch ( ); } //

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