Compilare: main.cpp: In function 'int main()': main.cpp:36:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int k = 0; k < v[j].size(); k++) ~~^~~~~~~~~~~~~ main.cpp:32:5: warning: this 'for' clause does not guard... [-Wmisleading-indentation] for(int i = 1; i < (1<<n)-1; i++) ^~~ main.cpp:54:9: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for' int ans = (1<<30); ^~~ main.cpp:56:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < v[0].size(); i++) ~~^~~~~~~~~~~~~