Compilare: main.cpp: In function 'int main()': main.cpp:45:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j=0;j<h[a[i]].size();++j) ~^~~~~~~~~~~~~~~ main.cpp:55:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j=0;j<h[a[i]].size();++j) ~^~~~~~~~~~~~~~~ main.cpp:63:4: warning: this 'for' clause does not guard... [-Wmisleading-indentation] for(i=1;i<=n;++i) ^~~ main.cpp:67:5: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for' fout<<maxi; ^~~~