Compilare: main.cpp: In function 'int main()': main.cpp:17:64: warning: unused variable 'c' [-Wunused-variable] int i, j, efmin = 120 * 120 * 120, colsol, culsol, d, sum, c; ^ main.cpp:41:39: warning: 'culsol' may be used uninitialized in this function [-Wmaybe-uninitialized] fout << efmin << " " << culsol << " " << colsol; ^~~ main.cpp:41:52: warning: 'colsol' may be used uninitialized in this function [-Wmaybe-uninitialized] fout << efmin << " " << culsol << " " << colsol; ^