Compilare: main.cpp: In function 'int main()': main.cpp:24:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 1; i < spart.size(); ++i) ~~^~~~~~~~~~~~~~ main.cpp:35:40: warning: 'r' may be used uninitialized in this function [-Wmaybe-uninitialized] g << mx << ' ' << l + 1 << ' ' << r; ^ main.cpp:35:32: warning: 'l' may be used uninitialized in this function [-Wmaybe-uninitialized] g << mx << ' ' << l + 1 << ' ' << r; ^~~