Compilare: user.cpp: In function ‘int main()’: user.cpp:34:15: warning: suggest parentheses around ‘+’ inside ‘>>’ [-Wparentheses] f >> sir1 + 1 >> sir2 + 1; ^ user.cpp:34:27: warning: suggest parentheses around ‘+’ inside ‘>>’ [-Wparentheses] f >> sir1 + 1 >> sir2 + 1; ^ user.cpp:51:110: warning: operation on ‘nr[(((int)sir2[i]) + -97)]’ may be undefined [-Wsequence-point] sol += mat[sir2[i] - 'a'][++nr[sir2[i] - 'a']] - 1 - query(mat[sir2[i] - 'a'][nr[sir2[i] - 'a']] - 1); ^