Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:41:5: error: expected primary-expression before ‘/’ token /reopen("flip.out","w",stdout); ^ user.cpp:41:34: error: ‘reopen’ was not declared in this scope /reopen("flip.out","w",stdout); ^ user.cpp:40:33: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("flip.in","r",stdin); ^ user.cpp:42:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&N,&M); ^ user.cpp:45:38: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&matrix[i][j]); ^