Compilare: user.cpp: In function ‘int main()’: user.cpp:2:145: warning: suggest parentheses around assignment used as truth value [-Wparentheses] using namespace std;int x,p;vector<int>s;string a,b,z="strmatch.";int main(){ifstream f(z+"in");ofstream g(z+"out");f>>a>>b;while(p=b.find(a,p)+1)s.push_back(p-1);g<<x<<'\n';while(p<x&p<1000)g<<s[p++]<<' ';} ^ user.cpp:2:182: warning: suggest parentheses around comparison in operand of ‘&’ [-Wparentheses] using namespace std;int x,p;vector<int>s;string a,b,z="strmatch.";int main(){ifstream f(z+"in");ofstream g(z+"out");f>>a>>b;while(p=b.find(a,p)+1)s.push_back(p-1);g<<x<<'\n';while(p<x&p<1000)g<<s[p++]<<' ';} ^