Compilare: main.cpp: In function 'std::pair<int, int> maxval(int, int)': main.cpp:77:13: warning: unused variable 'ok' [-Wunused-variable] int ok=1; ^~ main.cpp:105:12: warning: 'cul' may be used uninitialized in this function [-Wmaybe-uninitialized] return rr; ^~ main.cpp: In function 'int main()': main.cpp:161:42: warning: 'raspy' may be used uninitialized in this function [-Wmaybe-uninitialized] fout << raspx << ' ' << raspy << '\n'; ^~~~ main.cpp:161:26: warning: 'raspx' may be used uninitialized in this function [-Wmaybe-uninitialized] fout << raspx << ' ' << raspy << '\n'; ^~~