Borderou de evaluare (job #688859)

Compilare: main.cpp: In function 'int main()': main.cpp:11:10: warning: unused variable 'b' [-Wunused-variable] 11 | char b; | ^ main.cpp:6:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result] 6 | freopen("alfanumeric.in", "r", stdin); | ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:7:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result] 7 | freopen("alfanumeric.out", "w", stdout); | ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~