Compilare: main.cpp: In function 'int main()': main.cpp:67:50: warning: unused variable 'panta' [-Wunused-variable] double xm, ym, x1, y1, x2, y2, dist, panta; ^~~~~ main.cpp:64:5: warning: this 'for' clause does not guard... [-Wmisleading-indentation] for(int i = 1; i <= N; ++i) ^~~ main.cpp:100:9: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for' out<<nr/3; ^~~