Compilare: user.cpp: In function ‘Dreapta dreapta(Punct, Punct)’: user.cpp:18:22: warning: narrowing conversion of ‘(p2.Punct::y - p1.Punct::y)’ from ‘long long int’ to ‘double’ inside { } [-Wnarrowing] Dreapta d1 = {p2.y - p1.y, p1.x - p2.x, p1.y * p2.x - p1.x * p2.y}; ^ user.cpp:18:35: warning: narrowing conversion of ‘(p1.Punct::x - p2.Punct::x)’ from ‘long long int’ to ‘double’ inside { } [-Wnarrowing] Dreapta d1 = {p2.y - p1.y, p1.x - p2.x, p1.y * p2.x - p1.x * p2.y}; ^ user.cpp:18:55: warning: narrowing conversion of ‘((p1.Punct::y * p2.Punct::x) - (p1.Punct::x * p2.Punct::y))’ from ‘long long int’ to ‘double’ inside { } [-Wnarrowing] Dreapta d1 = {p2.y - p1.y, p1.x - p2.x, p1.y * p2.x - p1.x * p2.y}; ^ user.cpp: In function ‘int main()’: user.cpp:68:36: 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); ^ user.cpp:69:38: 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); ^ user.cpp:72:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%lld", &n); ^ user.cpp:75:40: 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); ^ user.cpp:62:3: warning: ‘ind3’ may be used uninitialized in this function [-Wmaybe-uninitialized] if (i + 1 > n) ^ user.cpp:91:25: note: ‘ind3’ was declared here long long ind1, ind2, ind3; ^ user.cpp:62:3: warning: ‘ind2’ may be used uninitialized in this function [-Wmaybe-uninitialized] if (i + 1 > n) ^ user.cpp:91:19: note: ‘ind2’ was declared here long long ind1, ind2, ind3; ^ user.cpp:62:3: warning: ‘ind1’ may be used uninitialized in this function [-Wmaybe-uninitialized] if (i + 1 > n) ^ user.cpp:91:13: note: ‘ind1’ was declared here long long ind1, ind2, ind3; ^