Compilare: main.cpp: In function 'int main()': main.cpp:55:5: warning: this 'while' clause does not guard... [-Wmisleading-indentation] while(k > 1 && !ccw(v[st[k - 2]], v[st[k - 1]], v[0])) ^~~~~ main.cpp:57:7: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'while' printf("%d\n", k); ^~~~~~ main.cpp:33:44: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("infasuratoare.in", "r", stdin); ^ main.cpp:34:46: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("infasuratoare.out", "w", stdout); ^ main.cpp:36:20: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &n); ^ main.cpp:39:40: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%lf%lf", &v[i].x, &v[i].y); ^