Borderou de evaluare (job #50481)

Compilare: user.cpp: In function ‘void solve()’: user.cpp:74:16: warning: unused variable ‘c’ [-Wunused-variable] user.cpp:74:27: warning: unused variable ‘k3’ [-Wunused-variable] user.cpp: In function ‘int main()’: user.cpp:107:40: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:108:42: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp: In function ‘void read()’: user.cpp:13:31: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:14:13: warning: ignoring return value of ‘char* gets(char*)’, declared with attribute warn_unused_result [-Wunused-result] /tmp/ccRwyuJj.o: In function `read()': user.cpp:(.text+0x2f): warning: the `gets' function is dangerous and should not be used.