Compilare: main.cpp: In function 'void RMQ1(int)': main.cpp:19:36: warning: suggest parentheses around '-' inside '<<' [-Wparentheses] 19 | rmq[j][i]=min(rmq[(1<<i-1)+j][i-1],rmq[j][i-1]); | ~^~ main.cpp:18:17: warning: unused variable 'a' [-Wunused-variable] 18 | int a=i-1; | ^ main.cpp:11:13: warning: unused variable 'a' [-Wunused-variable] 11 | int i,j,a; | ^ main.cpp: In function 'int main()': main.cpp:25:11: warning: unused variable 'j' [-Wunused-variable] 25 | int i,j,a,b,N, M,c,a1,b1; | ^ main.cpp:25:24: warning: unused variable 'a1' [-Wunused-variable] 25 | int i,j,a,b,N, M,c,a1,b1; | ^~ main.cpp:25:27: warning: unused variable 'b1' [-Wunused-variable] 25 | int i,j,a,b,N, M,c,a1,b1; | ^~