Compilare: user.cpp: In function ‘void curata(std::string)’: user.cpp:25:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i<s.size(); ++i){ ^ user.cpp: In function ‘int calc(int)’: user.cpp:85:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i<cuv.size(); ++i) ^ user.cpp: In function ‘int dfs(int)’: user.cpp:99:37: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = nod + 1; i<cuv.size(); ++i) ^ user.cpp:110:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ user.cpp: In function ‘int main()’: user.cpp:119:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i<cuv.size(); ++i) ^ user.cpp:120:37: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j = i+1; j<cuv.size(); ++j) ^