Compilare: main.cpp: In function 'void BuildSparseTable()': main.cpp:17:50: warning: suggest parentheses around '+' inside '<<' [-Wparentheses] lookup[i][j]=min(lookup[i-1][j],lookup[i-1][j+1<<(i-1)]); ~^~ main.cpp: In function 'int main()': main.cpp:35:5: warning: this 'for' clause does not guard... [-Wmisleading-indentation] for(i=1;i<=n;i++) ^~~ main.cpp:37:9: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for' len=ceil(log2(n)); ^~~ main.cpp:33:17: warning: unused variable 'scad' [-Wunused-variable] int i,a,b,j,scad; ^~~~