Compilare: main.cpp: In function 'int main()': main.cpp:65:36: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("rubarba.in", "r", stdin); ^ main.cpp:66:38: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("rubarba.out", "w", stdout); ^ main.cpp:69:20: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%lld", &n); ^ main.cpp:72:40: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%lld%lld", &v[i].x, &v[i].y); ^ main.cpp:61:14: warning: 'ind3' may be used uninitialized in this function [-Wmaybe-uninitialized] return i + 1; ^ main.cpp:88:25: note: 'ind3' was declared here long long ind1, ind2, ind3; ^~~~ main.cpp:61:14: warning: 'ind2' may be used uninitialized in this function [-Wmaybe-uninitialized] return i + 1; ^ main.cpp:88:19: note: 'ind2' was declared here long long ind1, ind2, ind3; ^~~~ main.cpp:61:14: warning: 'ind1' may be used uninitialized in this function [-Wmaybe-uninitialized] return i + 1; ^ main.cpp:88:13: note: 'ind1' was declared here long long ind1, ind2, ind3; ^~~~