Compilare: main.cpp: In function 'int main()': main.cpp:88:5: warning: this 'for' clause does not guard... [-Wmisleading-indentation] for(int i = 1; i <= N; i++) ^~~ main.cpp:92:2: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for' for(int st = maxx, dr = maxx; st >= 0; st--) ^~~ main.cpp:96:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < f[dr].size(); i++) ~~^~~~~~~~~~~~~~