Borderou de evaluare (job #722591)

Compilare: main.cpp: In function 'int main()': main.cpp:24:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'unsigned int'} [-Wsign-compare] 24 | for(int k=1;k<a.size();k++) | ~^~~~~~~~~ main.cpp:27:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'unsigned int'} [-Wsign-compare] 27 | if(k!=a.size()-1) | ~^~~~~~~~~~~~ main.cpp:52:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'unsigned int'} [-Wsign-compare] 52 | for(int i=1;i<a.size();i++) | ~^~~~~~~~~ main.cpp:75:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'unsigned int'} [-Wsign-compare] 75 | if(i==a.size()-1) | ~^~~~~~~~~~~~ main.cpp:11:13: warning: unused variable 'trec' [-Wunused-variable] 11 | int m,n,trec,suma=0,b=0,c=0,ok=1,ok2=0; | ^~~~