Borderou de evaluare (job #777166)

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; | ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:6:14: warning: 'j' is used uninitialized [-Wuninitialized] 6 | if((j+k)*((j+k)*(j+k)-1)<n) | ~~^~~ main.cpp:4:19: note: 'j' was declared here 4 | long long n,i,j,k=1<<20; | ^ main.cpp:8:14: warning: 'i' is used uninitialized [-Wuninitialized] 8 | for(;i*(i*i-1)+j*(j*j-1)<n;) | ~^~ main.cpp:4:17: note: 'i' was declared here 4 | long long n,i,j,k=1<<20; | ^