Compilare: main.cpp: In function 'int main()': main.cpp:57:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] {for(int j=0;j<comp[i].size();j++) ~^~~~~~~~~~~~~~~ main.cpp:57:6: warning: this 'for' clause does not guard... [-Wmisleading-indentation] {for(int j=0;j<comp[i].size();j++) ^~~ main.cpp:59:9: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for' fout<<"\n"; ^~~~