Compilare: main.cpp: In function 'bool test(int, int, int, int, int)': main.cpp:108:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] return gcds[i][j].size() <= wh || gcds[im][jm].size() <= wh || gcds[im][j].size() <= wh || gcds[i][jm].size() <= wh; ~~~~~~~~~~~~~~~~~~^~~~~ main.cpp:108:59: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] return gcds[i][j].size() <= wh || gcds[im][jm].size() <= wh || gcds[im][j].size() <= wh || gcds[i][jm].size() <= wh; ~~~~~~~~~~~~~~~~~~~~^~~~~ main.cpp:108:87: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] return gcds[i][j].size() <= wh || gcds[im][jm].size() <= wh || gcds[im][j].size() <= wh || gcds[i][jm].size() <= wh; ~~~~~~~~~~~~~~~~~~~^~~~~ main.cpp:108:115: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] return gcds[i][j].size() <= wh || gcds[im][jm].size() <= wh || gcds[im][j].size() <= wh || gcds[i][jm].size() <= wh; ~~~~~~~~~~~~~~~~~~~^~~~~