Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:21: error: ‘atoi’ was not declared in this scope user.cpp:22: error: ‘strcpy’ was not declared in this scope user.cpp:26: error: ‘strcpy’ was not declared in this scope user.cpp:32: error: ‘strcpy’ was not declared in this scope user.cpp:37: error: ‘strtok’ was not declared in this scope user.cpp:39: error: ‘strlen’ was not declared in this scope user.cpp:40: error: ‘atoi’ was not declared in this scope user.cpp:43: error: ‘strcmp’ was not declared in this scope user.cpp:51: error: ‘strcpy’ was not declared in this scope user.cpp:55: error: ‘strcpy’ was not declared in this scope user.cpp:66: error: ‘stricmp’ was not declared in this scope user.cpp:68: error: ‘strcpy’ was not declared in this scope user.cpp:74: error: expected ‘]’ before ‘;’ token