Borderou de evaluare (job #777167)

Compilare: main.cpp: In function 'int main()': main.cpp:5:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result] 5 | for(freopen("dartz1.in","r",stdin),scanf("%lld",&n),n>>=1;k;k>>=1) | ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~ main.cpp:5:45: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result] 5 | for(freopen("dartz1.in","r",stdin),scanf("%lld",&n),n>>=1;k;k>>=1) | ~~~~~^~~~~~~~~~~ main.cpp:10:19: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result] 10 | return freopen("dartz1.out","w",stdout),printf("%lld %lld %lld %lld",i-1,j-1,i-1,j-1),0; | ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~