oj.uz

Submission #600750

# Submission time Handle Problem Language Result Execution time Memory
600750 2022-07-21T07:36:07 Z 장태환(#8468) Arranging Tickets (JOI17_arranging_tickets) C++17
45 / 100
 1533 ms 396 KB 
#include <bits/stdc++.h>
using namespace std;
int stree[1<<20];
int lazy[1<<20];
int treeN;
void ul(int n)
{
    stree[n]+=lazy[n];
    if(n<treeN)
    {
        lazy[n*2]+=lazy[n];
        lazy[n*2+1]+=lazy[n];
    }
    lazy[n]=0;
}
void upd(int qs,int qe,int p,int s=0,int e=treeN-1,int i=1)
{
    ul(i);
    if(s>qe||qs>e)
    return;
    if(qs<=s&&e<=qe)
    {
        lazy[i]+=p;
        ul(i);
        return;
    }
    upd(qs,qe,p,s,(s+e)/2,i*2);
    upd(qs,qe,p,(s+e)/2+1,e,i*2+1);
    stree[i]=max(stree[i*2],stree[i*2+1]);
}
int arr[100100][2];
bool v[100100];
int main()
{
    int N,M;
    cin >>N>>M;
    for(treeN=1;treeN<N;treeN*=2);
    int i;
    for(i=0;i<M;i++)
    {
        int a;
        cin >>arr[i][0]>>arr[i][1]>>a;
        if(arr[i][0]>arr[i][1])
            swap(arr[i][0],arr[i][1]);
        arr[i][1]--;
        upd(arr[i][0],arr[i][1],1);
    }
    random_device rd;
    mt19937 gen(rd());
    uniform_int_distribution<int> d(0,M-1);
    int T=1000000;
    int mi=1<<30;
    while(T--)
    {
        int a=d(gen);
        int b=stree[1];

        if(v[a])
        {
            upd(arr[a][0],arr[a][1],2);
            upd(0,N-1,-1);
        }
        else
        {
            upd(arr[a][0],arr[a][1],-2);
            upd(0,N-1,1);
        }
        v[a]=1-v[a];
        mi=min(mi,b);
        if(stree[1]>b)
        {
            if(d(gen)==0)
                continue;
            if(v[a])
            {
                upd(arr[a][0],arr[a][1],2);
                upd(0,N-1,-1);
            }
            else
            {
                upd(arr[a][0],arr[a][1],-2);
                upd(0,N-1,1);
            }
            v[a]=1-v[a];
        }
    }
    cout <<mi;

}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 375 ms 312 KB Output is correct
2 Correct 409 ms 308 KB Output is correct
3 Correct 350 ms 212 KB Output is correct
4 Correct 367 ms 312 KB Output is correct
5 Correct 337 ms 308 KB Output is correct
6 Correct 348 ms 308 KB Output is correct
7 Correct 373 ms 308 KB Output is correct
8 Correct 352 ms 308 KB Output is correct
9 Correct 346 ms 332 KB Output is correct
10 Correct 371 ms 308 KB Output is correct
11 Correct 365 ms 308 KB Output is correct
12 Correct 377 ms 308 KB Output is correct
13 Correct 403 ms 308 KB Output is correct
14 Correct 373 ms 308 KB Output is correct
15 Correct 341 ms 308 KB Output is correct

Subtask #2
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 375 ms 312 KB Output is correct
2 Correct 409 ms 308 KB Output is correct
3 Correct 350 ms 212 KB Output is correct
4 Correct 367 ms 312 KB Output is correct
5 Correct 337 ms 308 KB Output is correct
6 Correct 348 ms 308 KB Output is correct
7 Correct 373 ms 308 KB Output is correct
8 Correct 352 ms 308 KB Output is correct
9 Correct 346 ms 332 KB Output is correct
10 Correct 371 ms 308 KB Output is correct
11 Correct 365 ms 308 KB Output is correct
12 Correct 377 ms 308 KB Output is correct
13 Correct 403 ms 308 KB Output is correct
14 Correct 373 ms 308 KB Output is correct
15 Correct 341 ms 308 KB Output is correct
16 Correct 797 ms 320 KB Output is correct
17 Correct 863 ms 320 KB Output is correct
18 Correct 838 ms 340 KB Output is correct
19 Correct 828 ms 332 KB Output is correct
20 Correct 864 ms 340 KB Output is correct
21 Correct 805 ms 320 KB Output is correct
22 Correct 849 ms 340 KB Output is correct
23 Correct 832 ms 340 KB Output is correct
24 Correct 808 ms 340 KB Output is correct
25 Correct 742 ms 316 KB Output is correct
26 Correct 786 ms 320 KB Output is correct
27 Correct 804 ms 320 KB Output is correct

Subtask #3
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 375 ms 312 KB Output is correct
2 Correct 409 ms 308 KB Output is correct
3 Correct 350 ms 212 KB Output is correct
4 Correct 367 ms 312 KB Output is correct
5 Correct 337 ms 308 KB Output is correct
6 Correct 348 ms 308 KB Output is correct
7 Correct 373 ms 308 KB Output is correct
8 Correct 352 ms 308 KB Output is correct
9 Correct 346 ms 332 KB Output is correct
10 Correct 371 ms 308 KB Output is correct
11 Correct 365 ms 308 KB Output is correct
12 Correct 377 ms 308 KB Output is correct
13 Correct 403 ms 308 KB Output is correct
14 Correct 373 ms 308 KB Output is correct
15 Correct 341 ms 308 KB Output is correct
16 Correct 797 ms 320 KB Output is correct
17 Correct 863 ms 320 KB Output is correct
18 Correct 838 ms 340 KB Output is correct
19 Correct 828 ms 332 KB Output is correct
20 Correct 864 ms 340 KB Output is correct
21 Correct 805 ms 320 KB Output is correct
22 Correct 849 ms 340 KB Output is correct
23 Correct 832 ms 340 KB Output is correct
24 Correct 808 ms 340 KB Output is correct
25 Correct 742 ms 316 KB Output is correct
26 Correct 786 ms 320 KB Output is correct
27 Correct 804 ms 320 KB Output is correct
28 Correct 1210 ms 388 KB Output is correct
29 Correct 1274 ms 396 KB Output is correct
30 Correct 1402 ms 396 KB Output is correct
31 Correct 1321 ms 396 KB Output is correct
32 Correct 1533 ms 392 KB Output is correct
33 Incorrect 1403 ms 388 KB Output isn't correct
34 Halted 0 ms 0 KB -

Subtask #4
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 375 ms 312 KB Output is correct
2 Correct 409 ms 308 KB Output is correct
3 Correct 350 ms 212 KB Output is correct
4 Correct 367 ms 312 KB Output is correct
5 Correct 337 ms 308 KB Output is correct
6 Correct 348 ms 308 KB Output is correct
7 Correct 373 ms 308 KB Output is correct
8 Correct 352 ms 308 KB Output is correct
9 Correct 346 ms 332 KB Output is correct
10 Correct 371 ms 308 KB Output is correct
11 Correct 365 ms 308 KB Output is correct
12 Correct 377 ms 308 KB Output is correct
13 Correct 403 ms 308 KB Output is correct
14 Correct 373 ms 308 KB Output is correct
15 Correct 341 ms 308 KB Output is correct
16 Correct 797 ms 320 KB Output is correct
17 Correct 863 ms 320 KB Output is correct
18 Correct 838 ms 340 KB Output is correct
19 Correct 828 ms 332 KB Output is correct
20 Correct 864 ms 340 KB Output is correct
21 Correct 805 ms 320 KB Output is correct
22 Correct 849 ms 340 KB Output is correct
23 Correct 832 ms 340 KB Output is correct
24 Correct 808 ms 340 KB Output is correct
25 Correct 742 ms 316 KB Output is correct
26 Correct 786 ms 320 KB Output is correct
27 Correct 804 ms 320 KB Output is correct
28 Correct 1210 ms 388 KB Output is correct
29 Correct 1274 ms 396 KB Output is correct
30 Correct 1402 ms 396 KB Output is correct
31 Correct 1321 ms 396 KB Output is correct
32 Correct 1533 ms 392 KB Output is correct
33 Incorrect 1403 ms 388 KB Output isn't correct
34 Halted 0 ms 0 KB -

Subtask #5
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 375 ms 312 KB Output is correct
2 Correct 409 ms 308 KB Output is correct
3 Correct 350 ms 212 KB Output is correct
4 Correct 367 ms 312 KB Output is correct
5 Correct 337 ms 308 KB Output is correct
6 Correct 348 ms 308 KB Output is correct
7 Correct 373 ms 308 KB Output is correct
8 Correct 352 ms 308 KB Output is correct
9 Correct 346 ms 332 KB Output is correct
10 Correct 371 ms 308 KB Output is correct
11 Correct 365 ms 308 KB Output is correct
12 Correct 377 ms 308 KB Output is correct
13 Correct 403 ms 308 KB Output is correct
14 Correct 373 ms 308 KB Output is correct
15 Correct 341 ms 308 KB Output is correct
16 Correct 797 ms 320 KB Output is correct
17 Correct 863 ms 320 KB Output is correct
18 Correct 838 ms 340 KB Output is correct
19 Correct 828 ms 332 KB Output is correct
20 Correct 864 ms 340 KB Output is correct
21 Correct 805 ms 320 KB Output is correct
22 Correct 849 ms 340 KB Output is correct
23 Correct 832 ms 340 KB Output is correct
24 Correct 808 ms 340 KB Output is correct
25 Correct 742 ms 316 KB Output is correct
26 Correct 786 ms 320 KB Output is correct
27 Correct 804 ms 320 KB Output is correct
28 Correct 1210 ms 388 KB Output is correct
29 Correct 1274 ms 396 KB Output is correct
30 Correct 1402 ms 396 KB Output is correct
31 Correct 1321 ms 396 KB Output is correct
32 Correct 1533 ms 392 KB Output is correct
33 Incorrect 1403 ms 388 KB Output isn't correct
34 Halted 0 ms 0 KB -