Compilare: main.cpp: In function 'int main()': main.cpp:47:3: warning: this 'for' clause does not guard... [-Wmisleading-indentation] for(i = 1;i <= vf;i++) ^~~ main.cpp:49:5: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for' vf = 0; ^~ main.cpp:59:4: warning: this 'for' clause does not guard... [-Wmisleading-indentation] for(i = 2;i <= vf - 1;i++) ^~~ main.cpp:61:5: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for' cout << convex_hull.size() << "\n"; ^~~~