Bac 2020

///_____SUBIECTUL III 1_____
int suma(int a, int b)
{
    int s=1, i;
    if(b>a)
        swap(a, b);
    for(i=2; i<=a; i++)
        if(a%i==0 && b%i==0)
            s+=i;
    return s;
}

///_____SUBIECTUL III 2_____
#include <iostream>
#include <cstring>
using namespace std;
int main()
{
    int i;
    char s[101], *p, ch, aux[101], sn[101]="";
    cin.getline(s, 101);
    p=strtok(s, " ");
    while(p)
    {
        strcpy(aux, p);
        if(strlen(aux)>=3)
        {
            ch=aux[0];
            for(i=0; i<strlen(aux)-1; i++)
                aux[i]=aux[i+1];
            aux[strlen(aux)-1]=ch;
        }
        strcat(sn, aux);
        strcat(sn, " ");
        p=strtok(NULL, " ");
    }
    strcpy(s, sn);
    cout<<s;

    return 0;
}
///_____SUBIECTUL III 3_____
#include <iostream>
#include <fstream>
using namespace std;
ifstream fin("bac.in");
int main()
{
    int x, f[11]={}, i;
    bool ok1=0, ok2=0;
    while(fin>>x)
        f[x]++;
    for(i=1; i<=11; i++)
    {
        if(ok1==1 && f[i]%2==1)
        {
            cout<<"NU";
            ok2=1;
            break;

        }
        if(f[i]%2)
            ok1=1;
    }
    if(ok2==0)
        cout<<"DA";
    return 0;
}