Borderou de evaluare (job #310330)

Compilare: user.cpp: In function ‘int solve(int)’: user.cpp:24:9: warning: unused variable ‘sum’ [-Wunused-variable] user.cpp: In function ‘int main()’: user.cpp:57:13: warning: unused variable ‘j’ [-Wunused-variable] user.cpp:55:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:56:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:58:40: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:62:28: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]