Compilare: main.cpp:10:49: warning: built-in function 'log2' declared as non-function [-Wbuiltin-declaration-mismatch] 10 | int k, dp[18][200001], niv[100001], pa[100001], log2[100001], t[100001]; | ^~~~ main.cpp: In function 'int main()': main.cpp:35:15: warning: unused variable 'a' [-Wunused-variable] 35 | { int n, m, a, b, r; | ^ main.cpp:35:18: warning: unused variable 'b' [-Wunused-variable] 35 | { int n, m, a, b, r; | ^ main.cpp:35:21: warning: unused variable 'r' [-Wunused-variable] 35 | { int n, m, a, b, r; | ^