Compilare: main.cpp: In function 'void update(int, int, int)': main.cpp:16:5: warning: this 'else' clause does not guard... [-Wmisleading-indentation] else ^~~~ main.cpp:18:9: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'else' v[p]=max(v[2*p+1],v[2*p]); ^