Borderou de evaluare (job #598421)

Compilare: main.cpp: In function 'int main()': main.cpp:6:9: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result] 6 | freopen("2numere.in","r",stdin); | ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:7:9: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result] 7 | freopen("2numere.out","w",stdout); | ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:8:7: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result] 8 | scanf("%ld",&n); | ~~~~~^~~~~~~~~~ main.cpp:11:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result] 11 | scanf("%ld",&a); | ~~~~~^~~~~~~~~~ main.cpp:16:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result] 16 | scanf("%ld",&b); | ~~~~~^~~~~~~~~~