Compilare: main.cpp: In function 'void newcode(int)': main.cpp:46:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=1;i<strings.size();i++) ~^~~~~~~~~~~~~~~ main.cpp: In function 'bool exists(int)': main.cpp:57:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<strings.size();i++) ~^~~~~~~~~~~~~~~ main.cpp: In function 'void addarray(std::vector<int>&, int)': main.cpp:81:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<strings.size();i++) ~^~~~~~~~~~~~~~~ main.cpp:85:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=0;j<strings[i].cod.size();j++) ~^~~~~~~~~~~~~~~~~~~~~~ main.cpp:87:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(j<arr.size()) ~^~~~~~~~~~~ main.cpp: In function 'void writecode(int, int)': main.cpp:117:13: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(i<secondarray.size()&&i<firstarray.size()) ~^~~~~~~~~~~~~~~~~~~ main.cpp:117:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(i<secondarray.size()&&i<firstarray.size()) ~^~~~~~~~~~~~~~~~~~ main.cpp:119:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] else if(i<secondarray.size()) ~^~~~~~~~~~~~~~~~~~~ main.cpp: In function 'std::pair<int, int> stop(std::__cxx11::string)': main.cpp:141:12: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(i<s.size()) ~^~~~~~~~~ main.cpp:150:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(s[i]!='('&&i<s.size()) ~^~~~~~~~~ main.cpp:161:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(s[i]!=','&&i<s.size()) ~^~~~~~~~~ main.cpp:163:13: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(i==s.size()) ~^~~~~~~~~~ main.cpp:188:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(i<s.size()&&s[i]!=',') ~^~~~~~~~~ main.cpp:190:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(i<s.size()&&s[i]!='(') ~^~~~~~~~~