Borderou de evaluare (job #687802)

Eroare de compilare: main.cpp: In function 'int main()': main.cpp:8:5: error: 'fin' was not declared in this scope; did you mean 'sin'? 8 | fin >> a >> b >> c; | ^~~ | sin main.cpp:13:5: error: 'fout' was not declared in this scope 13 | fout << d; | ^~~~ main.cpp:5:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result] 5 | freopen("abc1.in", "r", stdin); | ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~ 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("abc1.out", "w", stdout); | ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~