oj.uz

Submission #600748

# Submission time Handle Problem Language Result Execution time Memory
600748 2022-07-21T07:35:28 Z 장태환(#8468) Arranging Tickets (JOI17_arranging_tickets) C++17
45 / 100
 1225 ms 408 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 390 ms 308 KB Output is correct
2 Correct 399 ms 308 KB Output is correct
3 Correct 381 ms 312 KB Output is correct
4 Correct 427 ms 308 KB Output is correct
5 Correct 343 ms 332 KB Output is correct
6 Correct 343 ms 324 KB Output is correct
7 Correct 402 ms 308 KB Output is correct
8 Correct 354 ms 312 KB Output is correct
9 Correct 329 ms 316 KB Output is correct
10 Correct 378 ms 320 KB Output is correct
11 Correct 348 ms 316 KB Output is correct
12 Correct 409 ms 308 KB Output is correct
13 Correct 349 ms 312 KB Output is correct
14 Correct 360 ms 312 KB Output is correct
15 Correct 372 ms 312 KB Output is correct

Subtask #2
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 390 ms 308 KB Output is correct
2 Correct 399 ms 308 KB Output is correct
3 Correct 381 ms 312 KB Output is correct
4 Correct 427 ms 308 KB Output is correct
5 Correct 343 ms 332 KB Output is correct
6 Correct 343 ms 324 KB Output is correct
7 Correct 402 ms 308 KB Output is correct
8 Correct 354 ms 312 KB Output is correct
9 Correct 329 ms 316 KB Output is correct
10 Correct 378 ms 320 KB Output is correct
11 Correct 348 ms 316 KB Output is correct
12 Correct 409 ms 308 KB Output is correct
13 Correct 349 ms 312 KB Output is correct
14 Correct 360 ms 312 KB Output is correct
15 Correct 372 ms 312 KB Output is correct
16 Correct 843 ms 340 KB Output is correct
17 Correct 845 ms 340 KB Output is correct
18 Correct 822 ms 328 KB Output is correct
19 Correct 781 ms 340 KB Output is correct
20 Correct 839 ms 324 KB Output is correct
21 Correct 780 ms 340 KB Output is correct
22 Correct 803 ms 340 KB Output is correct
23 Correct 793 ms 340 KB Output is correct
24 Correct 773 ms 340 KB Output is correct
25 Correct 732 ms 340 KB Output is correct
26 Correct 777 ms 340 KB Output is correct
27 Correct 786 ms 340 KB Output is correct

Subtask #3
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 390 ms 308 KB Output is correct
2 Correct 399 ms 308 KB Output is correct
3 Correct 381 ms 312 KB Output is correct
4 Correct 427 ms 308 KB Output is correct
5 Correct 343 ms 332 KB Output is correct
6 Correct 343 ms 324 KB Output is correct
7 Correct 402 ms 308 KB Output is correct
8 Correct 354 ms 312 KB Output is correct
9 Correct 329 ms 316 KB Output is correct
10 Correct 378 ms 320 KB Output is correct
11 Correct 348 ms 316 KB Output is correct
12 Correct 409 ms 308 KB Output is correct
13 Correct 349 ms 312 KB Output is correct
14 Correct 360 ms 312 KB Output is correct
15 Correct 372 ms 312 KB Output is correct
16 Correct 843 ms 340 KB Output is correct
17 Correct 845 ms 340 KB Output is correct
18 Correct 822 ms 328 KB Output is correct
19 Correct 781 ms 340 KB Output is correct
20 Correct 839 ms 324 KB Output is correct
21 Correct 780 ms 340 KB Output is correct
22 Correct 803 ms 340 KB Output is correct
23 Correct 793 ms 340 KB Output is correct
24 Correct 773 ms 340 KB Output is correct
25 Correct 732 ms 340 KB Output is correct
26 Correct 777 ms 340 KB Output is correct
27 Correct 786 ms 340 KB Output is correct
28 Correct 1201 ms 388 KB Output is correct
29 Correct 1210 ms 400 KB Output is correct
30 Correct 1197 ms 408 KB Output is correct
31 Correct 1225 ms 396 KB Output is correct
32 Correct 1155 ms 396 KB Output is correct
33 Incorrect 1171 ms 392 KB Output isn't correct
34 Halted 0 ms 0 KB -

Subtask #4
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 390 ms 308 KB Output is correct
2 Correct 399 ms 308 KB Output is correct
3 Correct 381 ms 312 KB Output is correct
4 Correct 427 ms 308 KB Output is correct
5 Correct 343 ms 332 KB Output is correct
6 Correct 343 ms 324 KB Output is correct
7 Correct 402 ms 308 KB Output is correct
8 Correct 354 ms 312 KB Output is correct
9 Correct 329 ms 316 KB Output is correct
10 Correct 378 ms 320 KB Output is correct
11 Correct 348 ms 316 KB Output is correct
12 Correct 409 ms 308 KB Output is correct
13 Correct 349 ms 312 KB Output is correct
14 Correct 360 ms 312 KB Output is correct
15 Correct 372 ms 312 KB Output is correct
16 Correct 843 ms 340 KB Output is correct
17 Correct 845 ms 340 KB Output is correct
18 Correct 822 ms 328 KB Output is correct
19 Correct 781 ms 340 KB Output is correct
20 Correct 839 ms 324 KB Output is correct
21 Correct 780 ms 340 KB Output is correct
22 Correct 803 ms 340 KB Output is correct
23 Correct 793 ms 340 KB Output is correct
24 Correct 773 ms 340 KB Output is correct
25 Correct 732 ms 340 KB Output is correct
26 Correct 777 ms 340 KB Output is correct
27 Correct 786 ms 340 KB Output is correct
28 Correct 1201 ms 388 KB Output is correct
29 Correct 1210 ms 400 KB Output is correct
30 Correct 1197 ms 408 KB Output is correct
31 Correct 1225 ms 396 KB Output is correct
32 Correct 1155 ms 396 KB Output is correct
33 Incorrect 1171 ms 392 KB Output isn't correct
34 Halted 0 ms 0 KB -

Subtask #5
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 390 ms 308 KB Output is correct
2 Correct 399 ms 308 KB Output is correct
3 Correct 381 ms 312 KB Output is correct
4 Correct 427 ms 308 KB Output is correct
5 Correct 343 ms 332 KB Output is correct
6 Correct 343 ms 324 KB Output is correct
7 Correct 402 ms 308 KB Output is correct
8 Correct 354 ms 312 KB Output is correct
9 Correct 329 ms 316 KB Output is correct
10 Correct 378 ms 320 KB Output is correct
11 Correct 348 ms 316 KB Output is correct
12 Correct 409 ms 308 KB Output is correct
13 Correct 349 ms 312 KB Output is correct
14 Correct 360 ms 312 KB Output is correct
15 Correct 372 ms 312 KB Output is correct
16 Correct 843 ms 340 KB Output is correct
17 Correct 845 ms 340 KB Output is correct
18 Correct 822 ms 328 KB Output is correct
19 Correct 781 ms 340 KB Output is correct
20 Correct 839 ms 324 KB Output is correct
21 Correct 780 ms 340 KB Output is correct
22 Correct 803 ms 340 KB Output is correct
23 Correct 793 ms 340 KB Output is correct
24 Correct 773 ms 340 KB Output is correct
25 Correct 732 ms 340 KB Output is correct
26 Correct 777 ms 340 KB Output is correct
27 Correct 786 ms 340 KB Output is correct
28 Correct 1201 ms 388 KB Output is correct
29 Correct 1210 ms 400 KB Output is correct
30 Correct 1197 ms 408 KB Output is correct
31 Correct 1225 ms 396 KB Output is correct
32 Correct 1155 ms 396 KB Output is correct
33 Incorrect 1171 ms 392 KB Output isn't correct
34 Halted 0 ms 0 KB -