Compilare: user.cpp:10: warning: non-local variable ‘<anonymous struct> St [1000005]’ uses anonymous type user.cpp: In function ‘void citeste()’: user.cpp:19: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result user.cpp:20: warning: ignoring return value of ‘char* gets(char*)’, declared with attribute warn_unused_result user.cpp: In function ‘void rezolva()’: user.cpp:50: warning: operation on ‘k’ may be undefined user.cpp:54: warning: operation on ‘w’ may be undefined user.cpp: In function ‘int main()’: user.cpp:71: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:72: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result /tmp/ccA874YA.o: In function `citeste()': user.cpp:(.text+0x1d2): warning: the `gets' function is dangerous and should not be used.