Compilare: user.cpp: In function ‘void read()’: user.cpp:38:9: warning: unused variable ‘x’ [-Wunused-variable] int x, y; ^ user.cpp:38:12: warning: unused variable ‘y’ [-Wunused-variable] int x, y; ^ user.cpp:32:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("trenuri3.in", "r", stdin); ^ user.cpp:33:26: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &n, &m); ^ user.cpp:35:40: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &T[i].x, &T[i].c); ^ user.cpp:40:40: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &A[i].x, &A[i].y); ^ user.cpp: In function ‘void afis()’: user.cpp:89:41: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("trenuri3.out", "w", stdout); ^