Compilare: main.cpp: In function 'int main()': main.cpp:12:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 1; i < s.size () - 1; i ++) ~~^~~~~~~~~~~~~~~ main.cpp:12:8: warning: this 'for' clause does not guard... [-Wmisleading-indentation] for (int i = 1; i < s.size () - 1; i ++) ^~~ main.cpp:21:10: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for' ans = max (ans, cnt); ^~~ main.cpp:27:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 2; i < s.size (); i ++){ ~~^~~~~~~~~~~