Compilare: user.cpp: In function ‘int calculare(int, int)’: user.cpp:16:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<s.size();i++) ^ user.cpp:15:9: warning: unused variable ‘p’ [-Wunused-variable] int p; ^ user.cpp: In function ‘int main()’: user.cpp:45:17: warning: unused variable ‘ok’ [-Wunused-variable] int n,k,i,j,ok,nr,x,y; ^ user.cpp:45:20: warning: unused variable ‘nr’ [-Wunused-variable] int n,k,i,j,ok,nr,x,y; ^ user.cpp: In function ‘int calculare(int, int)’: user.cpp:29:49: warning: ‘nr1’ may be used uninitialized in this function [-Wmaybe-uninitialized] intregi[l][c]+=calculare(nr1,nr); ^