Compilare: main.cpp: In function 'void Solve1()': main.cpp:21:38: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int k = 0, j = 0; k < g[i].size(), j < c[i].size();) { ~~^~~~~~~~~~~~~ main.cpp:21:55: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int k = 0, j = 0; k < g[i].size(), j < c[i].size();) { ~~^~~~~~~~~~~~~ main.cpp:21:38: warning: value computed is not used [-Wunused-value] for (int k = 0, j = 0; k < g[i].size(), j < c[i].size();) { ~~^~~~~~~~~~~~~ main.cpp:31:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (j == g[i].size() || k == c[i].size()) ~~^~~~~~~~~~~~~~ main.cpp:31:43: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (j == g[i].size() || k == c[i].size()) ~~^~~~~~~~~~~~~~ main.cpp:18:5: warning: this 'for' clause does not guard... [-Wmisleading-indentation] for (int i = 1; i <= n; i++) ^~~ main.cpp:42:9: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for' for (auto i : gresit) ^~~