Borderou de evaluare (job #673516)

Compilare: main.cpp: In function 'int main()': main.cpp:21:92: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'unsigned int'} [-Wsign-compare] 21 | while(!isspace(s1[j]) && j<s1.size()) { if(a == 0) a = char(s1[j]-48); | ~^~~~~~~~~~ main.cpp:26:92: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'unsigned int'} [-Wsign-compare] 26 | while(!isspace(s2[k]) && k<s1.size()) { if(b == 0) b = char(s2[k]-48); | ~^~~~~~~~~~