Compilare: user.cpp: In function ‘void DFS(const int&)’: user.cpp:18:22: warning: suggest parentheses around ‘+’ inside ‘>>’ [-Wparentheses] l2[s + 1] = l2[s + 1 >> 1] + 1; ^ user.cpp:24:26: warning: suggest parentheses around ‘+’ inside ‘>>’ [-Wparentheses] l2[s + 1] = l2[s + 1 >> 1] + 1; ^ user.cpp: In function ‘void RMQ_build()’: user.cpp:39:47: warning: suggest parentheses around ‘-’ inside ‘<<’ [-Wparentheses] for (l = s - (1 << i) + 1, d = 1 << i - 1, j = 1; j <= l; ++j) ^ user.cpp: In function ‘int main()’: user.cpp:92:30: warning: variable ‘k’ set but not used [-Wunused-but-set-variable] int M, P, i, a, b, c, d, k, x, y, z, _x, _y; ^ user.cpp:92:39: warning: unused variable ‘z’ [-Wunused-variable] int M, P, i, a, b, c, d, k, x, y, z, _x, _y; ^ user.cpp:92:42: warning: unused variable ‘_x’ [-Wunused-variable] int M, P, i, a, b, c, d, k, x, y, z, _x, _y; ^ user.cpp:92:46: warning: unused variable ‘_y’ [-Wunused-variable] int M, P, i, a, b, c, d, k, x, y, z, _x, _y; ^