Borderou de evaluare (job #800086)

Compilare: main.cpp: In function 'void citire()': main.cpp:22:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'unsigned int'} [-Wsign-compare] 22 | for(int j=0; j<s.length(); j++) | ~^~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:60:21: warning: iteration 20 invokes undefined behavior [-Waggressive-loop-optimizations] 60 | rez+=(v[0][i]*v[1][i])+v[1][i]*(v[1][i]-1)/2; | ~~~~~~^ main.cpp:58:19: note: within this loop 58 | for(int i=0; i<21; i++) | ~^~~