Borderou de evaluare (job #561608)

Compilare: user.cpp: In function ‘int find(int)’: user.cpp:20:32: warning: suggest parentheses around ‘-’ inside ‘>>’ [-Wparentheses] user.cpp: In function ‘int main()’: user.cpp:40:37: warning: suggest parentheses around ‘+’ inside ‘>>’ [-Wparentheses] user.cpp:31:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:32:40: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:35:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:38:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp: In function ‘int find(int)’: user.cpp:27:12: warning: ‘ans’ may be used uninitialized in this function [-Wuninitialized]