Compilare: user.cpp: In function ‘int main()’: user.cpp:11:38: warning: unused variable ‘x’ [-Wunused-variable] int c, l, left = 0, rightL, rightC, x=0, y=0, constnt, maxim=0; ^ user.cpp:11:43: warning: unused variable ‘y’ [-Wunused-variable] int c, l, left = 0, rightL, rightC, x=0, y=0, constnt, maxim=0; ^ user.cpp:12:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("spirala.in", "r", stdin); ^ user.cpp:13:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("spirala.out", "w", stdout); ^ user.cpp:15:26: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d\n", &l, &c); ^ user.cpp:20:26: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d ", &m[i][j]); ^