Compilare: user.cpp: In function ‘int main()’: user.cpp:2:214: warning: statement has no effect [-Wunused-value] using namespace std;int x,p=-1,i;vector<int>s;string a,b,z="strmatch.";int main(){ifstream f(z+"in");f>>a>>b;while(1){p=b.find(a,p+1);if(p<0)break;x++;if(x<1001)s.push_back(p);}ofstream g(z+"out");g<<x<<"\n";for(i;i<min(x,1000);i++)g<<s[i]<<" ";} ^