Question

Se citesc n numere intregi. Se se afiseze cate cifre de 7 contin toate numerele.

Answer 1

#include <iostream>

using namespace std;

int main(){

int n,x,i,cnt7 = 0;

cin >> n;

for(i = 0; i < n; i++){

cin >> x;

while(x != 0){

if(x%10==7)

cnt7++;

x/=10;

}

}

cout << cnt7;

}

Answer 2

Răspuns:

var

 x: array[1..20] of Integer;

 i, k, n: Integer;

begin

 write('Matricea: ');

 readln(n);

 for i := 1 to n do

 begin

   readln(x[i]);

   if x[i] = 7 then Inc(k);

 end;

 writeln;

 writeln('Numarul 7 se intalneste de ', k, ' ori');

end.