sim 2021 II

1.
a.-1
b.7777
  7778
  7779
c.
#include <iostream>

using namespace std;
int main()
{
    int n,m,c;
    cin>>n;
    m=10;
    if(n==0)
        m=0;
    else
    {
        do
        {
            c=n%10;
            n=n/10;
            if(c<=m)
                m=c;
            else
                m=-1;
        }
        while(n!=0);
    }
    cout<<m;
    return 0;
}
d.
citeste->n
m<-10
{ daca n=0 atunci
   m<-0
  altfel
 {  cat timp n!=0 executa
     c<-n%10
     n<-n/10
  {  daca c<=m atunci
      m<-c
       altfel
    m<- -1
  }
 }
}
scrie m