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답안 #1084303

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
1084303 2024-09-05T19:08:27 Z De3b0o Fire (BOI24_fire) C++17
53 / 100
 125 ms 11616 KB 
#include<bits/stdc++.h>
#include<random>
#define ll long long
#define F first
#define S second
#define in insert
#define pb push_back
#define ppb pop_back()
#define d3 ios::sync_with_stdio(0);cin.tie(0);cout.tie(0);
#define cans cout << ans << "\n";
#define yes cout << "Yes" << "\n";
#define no cout << "No" << "\n";
#define pll pair<ll,ll>
#define lin cout << "\n";
#define sqr 340
#define mod 1000000007
#define mid ((l+r)/2)
#define lc (2*x)
#define rc (2*x+1)
#define sq 547

using namespace std;

ll n , m;
vector<pll> v;
ll ans;
ll l[200009] , r[200009];
ll idx;

void pro(ll s , ll e , ll t)
{
    bool g = 1;
    ll ans1 = t;
    ll id = s;
    while(id<e)
    {
        while(idx<v.size())
        {
            if(v[idx].F<=id)
                idx++;
            else
                break;
        }
        if(idx==0)
        {
            g=0;
            break;
        }
        ll ne = v[idx-1].S;
        if(ne<=id)
        {
            g=0;
            break;
        }
        ans1++;
        id=ne;
    }
    if(g&&ans1!=1)
        ans=min(ans,ans1);
}

int main()
{
    cin >> n >> m;
    ans=n+1;
    for(int i = 0 ; n>i ; i++)
        cin >> l[i] >> r[i];
    for(int i = 0 ; n>i ; i++)
    {
        ll x = l[i] , y = r[i];
        if(x>y)
            y=m-1;
        v.pb({x,y});
    }
    sort(v.begin(),v.end());
    for(int i = 1 ; v.size()>i ; i++)
        v[i].S=max(v[i].S,v[i-1].S);
    ll mn = 1e10 , id1 = -1;
    ll mx = -1 , id2 = -1;
    bool ws = 0;
    ll d = 0;
    for(int i = 0 ; n>i ; i++)
    {
        if(min(l[i],r[i])==0&&max(l[i],r[i])==m-1)
            ws=1;
        if(l[i]==0||r[i]==m-1||l[i]>r[i])
            d++;
        if(l[i]>r[i])
        {
            if(l[i]<mn)
            {
                mn=l[i];
                id1=i;
            }
            if(r[i]>mx)
            {
                mx=r[i];
                id2=i;
            }
        }
    }
    pro(0,m-1,0);
    idx=0;
    if(id1!=-1)
    {
        idx=0;
        pro(r[id1],l[id1],1);
    }
    if(id2!=-1)
    {
        idx=0;
        pro(r[id2],l[id2],1);
    }
    if(ws&&d>1)
        ans=2;
    if(ans==n+1)
        ans=-1;
    cans
}

Compilation message

Main.cpp: In function 'void pro(long long int, long long int, long long int)':
Main.cpp:37:18: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   37 |         while(idx<v.size())
      |               ~~~^~~~~~~~~
Main.cpp: In function 'int main()':
Main.cpp:76:29: warning: comparison of integer expressions of different signedness: 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   76 |     for(int i = 1 ; v.size()>i ; i++)
      |                     ~~~~~~~~^~

Subtask #1
14.0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 344 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 344 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 1 ms 348 KB Output is correct

Subtask #2
17.0 / 17.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 344 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 344 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 1 ms 348 KB Output is correct
24 Correct 1 ms 348 KB Output is correct
25 Correct 0 ms 348 KB Output is correct
26 Correct 1 ms 348 KB Output is correct
27 Correct 0 ms 348 KB Output is correct
28 Correct 0 ms 348 KB Output is correct
29 Correct 0 ms 348 KB Output is correct
30 Correct 1 ms 348 KB Output is correct
31 Correct 0 ms 348 KB Output is correct
32 Correct 1 ms 348 KB Output is correct
33 Correct 0 ms 348 KB Output is correct
34 Correct 1 ms 344 KB Output is correct
35 Correct 0 ms 348 KB Output is correct
36 Correct 0 ms 348 KB Output is correct
37 Correct 0 ms 348 KB Output is correct
38 Correct 1 ms 348 KB Output is correct

Subtask #3
9.0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 344 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 344 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 1 ms 348 KB Output is correct
24 Correct 1 ms 348 KB Output is correct
25 Correct 0 ms 348 KB Output is correct
26 Correct 1 ms 348 KB Output is correct
27 Correct 0 ms 348 KB Output is correct
28 Correct 0 ms 348 KB Output is correct
29 Correct 0 ms 348 KB Output is correct
30 Correct 1 ms 348 KB Output is correct
31 Correct 0 ms 348 KB Output is correct
32 Correct 1 ms 348 KB Output is correct
33 Correct 0 ms 348 KB Output is correct
34 Correct 1 ms 344 KB Output is correct
35 Correct 0 ms 348 KB Output is correct
36 Correct 0 ms 348 KB Output is correct
37 Correct 0 ms 348 KB Output is correct
38 Correct 1 ms 348 KB Output is correct
39 Correct 4 ms 604 KB Output is correct
40 Correct 3 ms 604 KB Output is correct
41 Correct 4 ms 876 KB Output is correct
42 Correct 3 ms 788 KB Output is correct
43 Correct 3 ms 604 KB Output is correct
44 Correct 4 ms 604 KB Output is correct
45 Correct 4 ms 604 KB Output is correct
46 Correct 4 ms 688 KB Output is correct
47 Correct 3 ms 600 KB Output is correct
48 Correct 4 ms 820 KB Output is correct
49 Correct 2 ms 604 KB Output is correct
50 Correct 3 ms 724 KB Output is correct

Subtask #4
13.0 / 13.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 0 ms 444 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 0 ms 376 KB Output is correct
15 Correct 3 ms 604 KB Output is correct
16 Correct 3 ms 604 KB Output is correct
17 Correct 5 ms 604 KB Output is correct
18 Correct 4 ms 820 KB Output is correct
19 Correct 4 ms 604 KB Output is correct
20 Correct 44 ms 8396 KB Output is correct
21 Correct 111 ms 11476 KB Output is correct
22 Correct 120 ms 11416 KB Output is correct
23 Correct 95 ms 10692 KB Output is correct
24 Correct 116 ms 11480 KB Output is correct
25 Correct 120 ms 10944 KB Output is correct
26 Correct 114 ms 11616 KB Output is correct
27 Correct 118 ms 11460 KB Output is correct
28 Correct 112 ms 11456 KB Output is correct

Subtask #5
0 / 21.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 412 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 3 ms 604 KB Output is correct
13 Correct 4 ms 604 KB Output is correct
14 Correct 3 ms 604 KB Output is correct
15 Correct 46 ms 8388 KB Output is correct
16 Correct 93 ms 10648 KB Output is correct
17 Incorrect 125 ms 11436 KB Output isn't correct
18 Halted 0 ms 0 KB -

Subtask #6
0 / 26.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 344 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 344 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 1 ms 348 KB Output is correct
24 Correct 1 ms 348 KB Output is correct
25 Correct 0 ms 348 KB Output is correct
26 Correct 1 ms 348 KB Output is correct
27 Correct 0 ms 348 KB Output is correct
28 Correct 0 ms 348 KB Output is correct
29 Correct 0 ms 348 KB Output is correct
30 Correct 1 ms 348 KB Output is correct
31 Correct 0 ms 348 KB Output is correct
32 Correct 1 ms 348 KB Output is correct
33 Correct 0 ms 348 KB Output is correct
34 Correct 1 ms 344 KB Output is correct
35 Correct 0 ms 348 KB Output is correct
36 Correct 0 ms 348 KB Output is correct
37 Correct 0 ms 348 KB Output is correct
38 Correct 1 ms 348 KB Output is correct
39 Correct 4 ms 604 KB Output is correct
40 Correct 3 ms 604 KB Output is correct
41 Correct 4 ms 876 KB Output is correct
42 Correct 3 ms 788 KB Output is correct
43 Correct 3 ms 604 KB Output is correct
44 Correct 4 ms 604 KB Output is correct
45 Correct 4 ms 604 KB Output is correct
46 Correct 4 ms 688 KB Output is correct
47 Correct 3 ms 600 KB Output is correct
48 Correct 4 ms 820 KB Output is correct
49 Correct 2 ms 604 KB Output is correct
50 Correct 3 ms 724 KB Output is correct
51 Correct 0 ms 348 KB Output is correct
52 Correct 0 ms 348 KB Output is correct
53 Correct 0 ms 348 KB Output is correct
54 Correct 1 ms 348 KB Output is correct
55 Correct 0 ms 444 KB Output is correct
56 Correct 0 ms 348 KB Output is correct
57 Correct 0 ms 348 KB Output is correct
58 Correct 0 ms 348 KB Output is correct
59 Correct 1 ms 348 KB Output is correct
60 Correct 1 ms 348 KB Output is correct
61 Correct 1 ms 348 KB Output is correct
62 Correct 0 ms 348 KB Output is correct
63 Correct 1 ms 348 KB Output is correct
64 Correct 0 ms 376 KB Output is correct
65 Correct 3 ms 604 KB Output is correct
66 Correct 3 ms 604 KB Output is correct
67 Correct 5 ms 604 KB Output is correct
68 Correct 4 ms 820 KB Output is correct
69 Correct 4 ms 604 KB Output is correct
70 Correct 44 ms 8396 KB Output is correct
71 Correct 111 ms 11476 KB Output is correct
72 Correct 120 ms 11416 KB Output is correct
73 Correct 95 ms 10692 KB Output is correct
74 Correct 116 ms 11480 KB Output is correct
75 Correct 120 ms 10944 KB Output is correct
76 Correct 114 ms 11616 KB Output is correct
77 Correct 118 ms 11460 KB Output is correct
78 Correct 112 ms 11456 KB Output is correct
79 Correct 1 ms 344 KB Output is correct
80 Correct 0 ms 412 KB Output is correct
81 Correct 0 ms 348 KB Output is correct
82 Correct 0 ms 348 KB Output is correct
83 Correct 0 ms 348 KB Output is correct
84 Correct 0 ms 348 KB Output is correct
85 Correct 0 ms 348 KB Output is correct
86 Correct 0 ms 348 KB Output is correct
87 Correct 0 ms 348 KB Output is correct
88 Correct 0 ms 348 KB Output is correct
89 Correct 0 ms 348 KB Output is correct
90 Correct 3 ms 604 KB Output is correct
91 Correct 4 ms 604 KB Output is correct
92 Correct 3 ms 604 KB Output is correct
93 Correct 46 ms 8388 KB Output is correct
94 Correct 93 ms 10648 KB Output is correct
95 Incorrect 125 ms 11436 KB Output isn't correct
96 Halted 0 ms 0 KB -