Compilare: user.cpp: In function ‘int solve(int, int)’: user.cpp:53:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for( int i = 0; i < s.size(); i++ ){ ^ user.cpp: In function ‘char det_cul(int, int)’: user.cpp:85:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for( int i = 0; i < s.size(); i++ ){ ^ user.cpp: In function ‘int main()’: user.cpp:110:21: warning: suggest parentheses around ‘+’ inside ‘>>’ [-Wparentheses] fin >> a[i] + 1; ^ user.cpp: In function ‘char det_cul(int, int)’: user.cpp:104:12: warning: ‘culoare’ may be used uninitialized in this function [-Wmaybe-uninitialized] return culoare; ^