Compilare: user.cpp: In function ‘void citire()’: user.cpp:11:21: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d\n",&n); ^ user.cpp:12:29: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d\n",&it,&jt); ^ user.cpp:13:29: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d\n",&im,&jm); ^ user.cpp: In function ‘int main()’: user.cpp:104:34: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("piata.in","r",stdin); ^ user.cpp:105:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("piata.out","w",stdout); ^ user.cpp: In function ‘void prelucrare()’: user.cpp:61:15: warning: ‘last’ may be used uninitialized in this function [-Wmaybe-uninitialized] last--; ^