Compilare: user.cpp: In function ‘int main()’: user.cpp:6:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("farfurii.in","r",stdin); freopen("farfurii.out","w",stdout); scanf("%lld %lld",&n,&k); i=1; while(i*(i+1)/2<k)i++; for(j=1;j<=n-i-1;j++)printf("%lld ",j); nr=n-i*(i+1)/2+k; printf("%lld ",nr); for(j=n;j>=n-i;j--)if(j!=nr)printf("%lld ",j); return 0; ^ user.cpp:6:74: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("farfurii.in","r",stdin); freopen("farfurii.out","w",stdout); scanf("%lld %lld",&n,&k); i=1; while(i*(i+1)/2<k)i++; for(j=1;j<=n-i-1;j++)printf("%lld ",j); nr=n-i*(i+1)/2+k; printf("%lld ",nr); for(j=n;j>=n-i;j--)if(j!=nr)printf("%lld ",j); return 0; ^ user.cpp:6:102: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] freopen("farfurii.in","r",stdin); freopen("farfurii.out","w",stdout); scanf("%lld %lld",&n,&k); i=1; while(i*(i+1)/2<k)i++; for(j=1;j<=n-i-1;j++)printf("%lld ",j); nr=n-i*(i+1)/2+k; printf("%lld ",nr); for(j=n;j>=n-i;j--)if(j!=nr)printf("%lld ",j); return 0; ^