#include <iostream> using namespace std; int n; long long a[2000000],b[2000000]; long long licz[4000000]; long long sum[4000000]; bool flag[2000000]; int r=1; long long result=0; void insert(int a, long long c) { a=a+r+1; while(a>=1) { sum[a]+=c; licz[a]++; a=a>>1; } } long long query_licz(int a,int b) { a=a+r+1; b=b+r+1; long long res=0; while(a/2!=b/2) { if(a%2==0)res+=licz[a+1]; if(b%2==1)res+=licz[b-1]; a=a>>1; b=b>>1; } return res; } long long query_sum(int a,int b) { a=a+r+1; b=b+r+1; long long res=0; while(a/2!=b/2) { if(a%2==0)res+=sum[a+1]; if(b%2==1)res+=sum[b-1]; a=a>>1; b=b>>1; } return res; } void take() { long long maks=0,nr=0; for(int i=0;i<n;i++) { if(flag[i]==0) { long long tmp=result+b[i]+a[i]*query_licz(-1,a[i])+query_sum(a[i]-1,1000005); if(tmp>maks) { maks=tmp; nr=i; } } } flag[nr]=1; result=maks; //cout<<nr<<" - "<<a[nr]<<" "<<b[nr]<<" "; insert(a[nr],a[nr]); } int main() { ios_base::sync_with_stdio(0); cin>>n; for(int i=0;i<n;i++)cin>>a[i]>>b[i]; while(r<1000000)r=r<<1; for(int i=0;i<n;i++) { take(); cout<<result<<endl; } }
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 | #include <iostream> using namespace std; int n; long long a[2000000],b[2000000]; long long licz[4000000]; long long sum[4000000]; bool flag[2000000]; int r=1; long long result=0; void insert(int a, long long c) { a=a+r+1; while(a>=1) { sum[a]+=c; licz[a]++; a=a>>1; } } long long query_licz(int a,int b) { a=a+r+1; b=b+r+1; long long res=0; while(a/2!=b/2) { if(a%2==0)res+=licz[a+1]; if(b%2==1)res+=licz[b-1]; a=a>>1; b=b>>1; } return res; } long long query_sum(int a,int b) { a=a+r+1; b=b+r+1; long long res=0; while(a/2!=b/2) { if(a%2==0)res+=sum[a+1]; if(b%2==1)res+=sum[b-1]; a=a>>1; b=b>>1; } return res; } void take() { long long maks=0,nr=0; for(int i=0;i<n;i++) { if(flag[i]==0) { long long tmp=result+b[i]+a[i]*query_licz(-1,a[i])+query_sum(a[i]-1,1000005); if(tmp>maks) { maks=tmp; nr=i; } } } flag[nr]=1; result=maks; //cout<<nr<<" - "<<a[nr]<<" "<<b[nr]<<" "; insert(a[nr],a[nr]); } int main() { ios_base::sync_with_stdio(0); cin>>n; for(int i=0;i<n;i++)cin>>a[i]>>b[i]; while(r<1000000)r=r<<1; for(int i=0;i<n;i++) { take(); cout<<result<<endl; } } |