BAC 2021 TEST 4 ANTRENAMENT INFO

I.
1.c
2.a
3.b
4.d
5.c

II.
1.
a. 15
b. 10000 18888

c.
#include <bits/stdc++.h>
using namespace std;

int main()
{int n,k,p,c;
cin>>n>>k;
p=1;
while(n)
{c=n%10;
if(k>0)
    if(c%2==1)
    p=p*c;

n/=10;
k--;
}
cout<<p;
}

d.

2.
struct{int gramaj;
       strct{int zi;
             int luna;
             int an;
              }datae;
       }c;

3.
9sntTEA

III.
1.
int divizor(int n)
{int i,nr=1;
for(i=2;i*i<=n;i++)
    if(n%i==0)
{nr++;
if(i*i<n)
    nr++;}
    return nr;
}

2.
#include <bits/stdc++.h>
using namespace std;
int main()
{int a[101][101],i,j,n,m,maxi;
cin>>m>>n;
for(i=1;i<=m;i++)
    {maxi=-1;
    for(j=1;j<=n;j++)
    {cin>>a[i][j];
    if(a[i][j]<21 && maxi<a[i][j])
        maxi=a[i][j];
    }
    if(maxi==-1)
    cout<<"nu exista"<<"\n";
    else
    cout<<maxi<<"\n";}
    return 0;
}

3.

#include <bits/stdc++.h>
using namespace std;
ifstream vin("bac1.txt");
ifstream gin("bac2.txt");
int main()
{int n,m,c1,c2,i,j;
vin>>n;
gin>>m;
vin>>c1;
gin>>c2;
i=1;
j=1;
while(i<=n && j<=m)
{if(c1<c2)
  {i++;
  if(c1%5==0)
    cout<<c1<<" ";
   vin>>c1;
  }
 else
    if(c1==c2)
    {i++;
    j++;
    vin>>c1;
    gin>>c2;}
    else
        if(c1>c2)
    {j++;
    if(c2%5==0)
    cout<<c2<<" ";
    gin>>c2;
        }
}
if(i<=n)
    for(int k=i;k<=n;k++)
{vin>>c1;
if(c1%5==0)
    cout<<c1<<" ";}
else
    if(j<=m)
    for(int k=j;k<=m;k++)
{gin>>c2;
if(c2%5==0)
    cout<<c2<<" ";}
    return 0;
}