Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:17: error: lvalue required as left operand of assignment user.cpp:20: error: lvalue required as left operand of assignment user.cpp:12: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp: In function ‘long long int next3(int)’: user.cpp:76: error: lvalue required as left operand of assignment user.cpp: In function ‘long long int next5(int)’: user.cpp:83: error: lvalue required as left operand of assignment user.cpp: At global scope: user.cpp:86: error: expected declaration before ‘}’ token