oj.uz

답안 #14236

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
14236 2015-05-07T10:42:39 Z dohyun0324 사회적 불평등 (TOKI14_social) C++
100 / 100
 46 ms 14364 KB 
#include<stdio.h>
#include<algorithm>
using namespace std;
int n,t;
long long dap;
struct data{
    int x,y;
    bool operator<(const data&r)const{
        return x<r.x;
    }
}a[100010];
struct data2
{
    long long val1,val2,val3,val4;
}tree[400010];
void update(int pos,int p)
{
    int x=a[pos].y;
    while(x<=t)
    {
        tree[x].val1+=p*a[pos].x*a[pos].y;
        tree[x].val2+=p*a[pos].x;
        tree[x].val3+=p*a[pos].y;
        tree[x].val4+=p;
        x+=x&(-x);
    }
}
long long query(int x,int a,int b)
{
    long long s=0;
    while(x)
    {
        s+=tree[x].val1-b*tree[x].val2-a*tree[x].val3+a*b*tree[x].val4;
        x-=x&(-x);
    }
    return s;
}
int main()
{
    int i,maxi=0;
    scanf("%d",&n);
    for(i=1;i<=n;i++)
    {
        scanf("%d %d",&a[i].x,&a[i].y);
        if(maxi<a[i].y) maxi=a[i].y;
    }
    for(t=1;t<=maxi;t*=2);
    sort(a+1,a+n+1);
    for(i=1;i<=n;i++)
    {
        update(i,1);
    }
    for(i=1;i<=n;i++)
    {
        update(i,-1);
        dap+=query(a[i].y,a[i].x,a[i].y);
        dap+=-(query(t,a[i].x,a[i].y)-query(a[i].y,a[i].x,a[i].y));
    }
    printf("%lld",-dap);
    return 0;
}

Subtask #1
29.0 / 29.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 14364 KB Output is correct
2 Correct 0 ms 14364 KB Output is correct
3 Correct 0 ms 14364 KB Output is correct
4 Correct 0 ms 14364 KB Output is correct
5 Correct 0 ms 14364 KB Output is correct
6 Correct 0 ms 14364 KB Output is correct
7 Correct 0 ms 14364 KB Output is correct
8 Correct 0 ms 14364 KB Output is correct
9 Correct 0 ms 14364 KB Output is correct
10 Correct 0 ms 14364 KB Output is correct

Subtask #2
19.0 / 19.0

# 결과 실행 시간 메모리 Grader output
1 Correct 17 ms 14364 KB Output is correct
2 Correct 17 ms 14364 KB Output is correct
3 Correct 15 ms 14364 KB Output is correct
4 Correct 10 ms 14364 KB Output is correct
5 Correct 17 ms 14364 KB Output is correct
6 Correct 15 ms 14364 KB Output is correct
7 Correct 15 ms 14364 KB Output is correct
8 Correct 7 ms 14364 KB Output is correct
9 Correct 16 ms 14364 KB Output is correct
10 Correct 10 ms 14364 KB Output is correct

Subtask #3
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 20 ms 14364 KB Output is correct
2 Correct 20 ms 14364 KB Output is correct
3 Correct 21 ms 14364 KB Output is correct
4 Correct 10 ms 14364 KB Output is correct
5 Correct 18 ms 14364 KB Output is correct
6 Correct 19 ms 14364 KB Output is correct
7 Correct 21 ms 14364 KB Output is correct
8 Correct 16 ms 14364 KB Output is correct
9 Correct 15 ms 14364 KB Output is correct
10 Correct 23 ms 14364 KB Output is correct

Subtask #4
32.0 / 32.0

# 결과 실행 시간 메모리 Grader output
1 Correct 10 ms 14364 KB Output is correct
2 Correct 46 ms 14364 KB Output is correct
3 Correct 37 ms 14364 KB Output is correct
4 Correct 20 ms 14364 KB Output is correct
5 Correct 26 ms 14364 KB Output is correct
6 Correct 35 ms 14364 KB Output is correct
7 Correct 31 ms 14364 KB Output is correct
8 Correct 38 ms 14364 KB Output is correct
9 Correct 40 ms 14364 KB Output is correct
10 Correct 44 ms 14364 KB Output is correct