Compilare: main.cpp: In function 'void addNumbers(int, int)': main.cpp:61:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (maxSize > v[resultIndex].size()) { ~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~ main.cpp:69:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] int pValue = i >= v[pIndex].size() ? 0 : v[pIndex][i]; ~~^~~~~~~~~~~~~~~~~~~ main.cpp: In function 'void subtractNumbers(int, int)': main.cpp:81:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for ( int i = 0; i < v[resultIndex].size() && i < v[pIndex].size(); i++) { ~~^~~~~~~~~~~~~~~~~~~~~~~ main.cpp:81:50: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for ( int i = 0; i < v[resultIndex].size() && i < v[pIndex].size(); i++) { ~~^~~~~~~~~~~~~~~~~~ main.cpp:86:13: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while (k < v[resultIndex].size() && v[resultIndex][k] ==0) k++; ~~^~~~~~~~~~~~~~~~~~~~~~~