Borderou de evaluare (job #696224)

Compilare: main.cpp: In function 'int main()': main.cpp:48:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result] 48 | freopen("diametru.in","r",stdin); | ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:49:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result] 49 | freopen("diametru.out","w",stdout); | ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:50:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result] 50 | scanf("%d", &N); | ~~~~~^~~~~~~~~~ main.cpp:52:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result] 52 | scanf("%d %d", &a, &b); | ~~~~~^~~~~~~~~~~~~~~~~