oj.uz

Submission #13237

# Submission time Handle Problem Language Result Execution time Memory
13237 2015-02-05T11:48:22 Z dohyun0324 Weighting stones (IZhO11_stones) C++
100 / 100
 70 ms 8112 KB 
#include<stdio.h>
#include<algorithm>
using namespace std;
static int n,x1,y1,t=1,p;
struct data
{
  int maxi,mini,ch;
}Tree[600010];
void update(int x,int y,int k,int s,int e)
{
    if(Tree[k].ch!=0)
    {
        Tree[k].maxi+=Tree[k].ch; Tree[k].mini+=Tree[k].ch;
        Tree[k*2].ch+=Tree[k].ch; Tree[k*2+1].ch+=Tree[k].ch; Tree[k].ch=0;
    }
    if(s<=x && y<=e)
    {
        Tree[k].maxi+=p; Tree[k].mini+=p; Tree[k*2].ch+=p; Tree[k*2+1].ch+=p;
        return;
    }
    if(s>y || e<x) return;
    update(x,(x+y)/2,k*2,s,e);
    update((x+y)/2+1,y,k*2+1,s,e);
    Tree[k].maxi=max(Tree[k*2].maxi,Tree[k*2+1].maxi);
    Tree[k].mini=min(Tree[k*2].mini,Tree[k*2+1].mini);
}
int main()
{
    int i;
    scanf("%d",&n);
    for(;;){if(t>=n) break; t*=2;}
    for(i=1;i<=n;i++)
    {
        scanf("%d %d",&x1,&y1);
        if(y1==1) p=1;
        else p=-1;
        update(1,t,1,1,x1);
        if(Tree[1].maxi<=0) printf("<\n");
        else if(Tree[1].mini>=0) printf(">\n");
        else printf("?\n");
    }
    return 0;
}

Subtask #1
100.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 8112 KB Output is correct - 73 tokens
2 Correct 0 ms 8112 KB Output is correct - 89 tokens
3 Correct 0 ms 8112 KB Output is correct - 221 tokens
4 Correct 0 ms 8112 KB Output is correct - 21 tokens
5 Correct 0 ms 8112 KB Output is correct - 369 tokens
6 Correct 0 ms 8112 KB Output is correct - 492 tokens
7 Correct 0 ms 8112 KB Output is correct - 945 tokens
8 Correct 0 ms 8112 KB Output is correct - 1237 tokens
9 Correct 1 ms 8112 KB Output is correct - 1105 tokens
10 Correct 6 ms 8112 KB Output is correct - 8921 tokens
11 Correct 43 ms 8112 KB Output is correct - 56110 tokens
12 Correct 70 ms 8112 KB Output is correct - 90207 tokens
13 Correct 57 ms 8112 KB Output is correct - 100000 tokens
14 Correct 59 ms 8112 KB Output is correct - 100000 tokens
15 Correct 60 ms 8112 KB Output is correct - 100000 tokens
16 Correct 64 ms 8112 KB Output is correct - 100000 tokens
17 Correct 53 ms 8112 KB Output is correct - 100000 tokens
18 Correct 62 ms 8112 KB Output is correct - 99999 tokens
19 Correct 54 ms 8112 KB Output is correct - 99999 tokens
20 Correct 57 ms 8112 KB Output is correct - 99999 tokens
21 Correct 57 ms 8112 KB Output is correct - 100000 tokens
22 Correct 59 ms 8112 KB Output is correct - 100000 tokens
23 Correct 59 ms 8112 KB Output is correct - 100000 tokens
24 Correct 51 ms 8112 KB Output is correct - 100000 tokens
25 Correct 58 ms 8112 KB Output is correct - 100000 tokens