Compilare: user.cpp: In function ‘void update1(int, double)’: user.cpp:27: warning: suggest parentheses around arithmetic in operand of ‘^’ user.cpp: In function ‘void update2(int, double)’: user.cpp:33: warning: suggest parentheses around arithmetic in operand of ‘^’ user.cpp: In function ‘double query1(int)’: user.cpp:40: warning: suggest parentheses around arithmetic in operand of ‘^’ user.cpp: In function ‘double query2(int)’: user.cpp:48: warning: suggest parentheses around arithmetic in operand of ‘^’ user.cpp: In function ‘int main()’: user.cpp:109: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:110: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:111: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result user.cpp:118: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result user.cpp:127: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result