Compilare: user.cpp: In function ‘void citire()’: user.cpp:11: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:12: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:13: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result user.cpp:16: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result user.cpp: In function ‘void copiere()’: user.cpp:21: warning: ‘j’ may be used uninitialized in this function user.cpp: In function ‘void prelucrare()’: user.cpp:56: warning: ‘j’ may be used uninitialized in this function user.cpp: In function ‘int main()’: user.cpp:21: warning: ‘j’ may be used uninitialized in this function user.cpp:21: note: ‘j’ was declared here