Question

probleme informatica clasa a x-a C++​

Answer 1

2)

int main () {

int n,v[100],i,suma=0;

cin>>n;

for (i=1;1<=n;i++)

cin>>v[i];

for(i=1;i<=n;i++)

if( i%2==1) suma = suma + v[i] ;

cout<< suma;

return 0; }

3)

int main () {

int n,v[100],i,nule,negative;

cin>>n;

nule=0;

negative=0;

for ( i=1;i<=n;i++ )

cin>> v[i] ;

for ( i=1;i<=n;i++)

{

if ( v[i] == 0 ) nule ++ ;

if ( v[i] < 0 ) negative ++;

}

cout << nule << " '' << negative ;

return 0 ; }