oj.uz

Submission #1080297

# Submission time Handle Problem Language Result Execution time Memory
1080297 2024-08-29T08:40:45 Z oscar1f Fire (BOI24_fire) C++17
100 / 100
 324 ms 84388 KB 
#include<bits/stdc++.h>
using namespace std;

#define int long long

const int MAX_INTER=200*1000+5,MAX_LOG=18,INFINI=1000*1000*1000;
int nbInter,tailleTour;
vector<pair<int,int>> listeInter;
int inter[MAX_INTER][2];
int proch[MAX_INTER];
int pere[MAX_INTER][MAX_LOG][2];
bool tourn[MAX_INTER];
multiset<pair<int,int>> enCours;

int tailleInter(int deb,int fin) {
    if (deb<=fin) {
        return fin-deb;
    }
    else {
        return tailleTour-(deb-fin);
    }
}

signed main() {
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    cout.tie(NULL);
    cin>>nbInter>>tailleTour;
    for (int i=1;i<=nbInter;i++) {
        cin>>inter[i][0]>>inter[i][1];
        if (inter[i][0]<inter[i][1]) {
            listeInter.push_back({inter[i][0],-i});
            listeInter.push_back({inter[i][1],i});
            listeInter.push_back({inter[i][0]+tailleTour,-i});
            listeInter.push_back({inter[i][1]+tailleTour,i});
        }
        else {
            tourn[i]=true;
            listeInter.push_back({inter[i][0],-i});
            listeInter.push_back({inter[i][1]+tailleTour,i});
        }
    }
    multiset<pair<int,int>>::iterator it;
    sort(listeInter.begin(),listeInter.end());
    for (auto i:listeInter) {
        if (i.second<0) {
            i.second*=-1;
            if (tourn[i.second]) {
                enCours.insert({inter[i.second][1]+tailleTour,i.second});
            }
            else {
                enCours.insert({i.first-inter[i.second][0]+inter[i.second][1],i.second});
            }
        }
        else {
            if (tourn[i.second] or i.first<tailleTour) {
                it=enCours.end();
                it--;
                proch[i.second]=(*it).second;
                //cout<<i.second<<" "<<proch[i.second]<<endl;
            }
            it=enCours.lower_bound(i);
            enCours.erase(it);
        }
    }
    for (int i=1;i<=nbInter;i++) {
        pere[i][0][0]=proch[i];
        pere[i][0][1]=tailleInter(inter[i][1],inter[proch[i]][1]);
    }
    for (int j=1;j<MAX_LOG;j++) {
        for (int i=1;i<=nbInter;i++) {
            pere[i][j][0]=pere[pere[i][j-1][0]][j-1][0];
            pere[i][j][1]=pere[i][j-1][1]+pere[pere[i][j-1][0]][j-1][1];
        }
    }
    int pos,dejFait,nbUti,rep=INFINI;
    for (int i=1;i<=nbInter;i++) {
        pos=i;
        dejFait=tailleInter(inter[i][0],inter[i][1]);
        //cout<<dejFait<<" ";
        nbUti=1;
        for (int j=MAX_LOG-1;j>=0;j--) {
            if (dejFait+pere[pos][j][1]<tailleTour) {
                nbUti+=(1<<j);
                dejFait+=pere[pos][j][1];
                pos=pere[pos][j][0];
            }
        }
        nbUti++;
        dejFait+=pere[pos][0][1];
        //cout<<i<<" "<<nbUti<<endl;
        if (dejFait>=tailleTour) {
            rep=min(rep,nbUti);
        }
    }
    if (rep==INFINI) {
        cout<<-1<<endl;
    }
    else {
        cout<<rep<<endl;
    }
    return 0;
}

Subtask #1
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 1 ms 4444 KB Output is correct
3 Correct 0 ms 2396 KB Output is correct
4 Correct 1 ms 6492 KB Output is correct
5 Correct 1 ms 2396 KB Output is correct
6 Correct 1 ms 4444 KB Output is correct
7 Correct 1 ms 6492 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 1 ms 344 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 1 ms 2392 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 1 ms 344 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 1 ms 2396 KB Output is correct
21 Correct 1 ms 344 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

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 1 ms 4444 KB Output is correct
3 Correct 0 ms 2396 KB Output is correct
4 Correct 1 ms 6492 KB Output is correct
5 Correct 1 ms 2396 KB Output is correct
6 Correct 1 ms 4444 KB Output is correct
7 Correct 1 ms 6492 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 1 ms 344 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 1 ms 2392 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 1 ms 344 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 1 ms 2396 KB Output is correct
21 Correct 1 ms 344 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 2396 KB Output is correct
25 Correct 1 ms 604 KB Output is correct
26 Correct 1 ms 600 KB Output is correct
27 Correct 1 ms 6492 KB Output is correct
28 Correct 1 ms 6496 KB Output is correct
29 Correct 1 ms 6492 KB Output is correct
30 Correct 1 ms 636 KB Output is correct
31 Correct 1 ms 604 KB Output is correct
32 Correct 1 ms 604 KB Output is correct
33 Correct 1 ms 608 KB Output is correct
34 Correct 1 ms 604 KB Output is correct
35 Correct 1 ms 604 KB Output is correct
36 Correct 1 ms 604 KB Output is correct
37 Correct 1 ms 604 KB Output is correct
38 Correct 1 ms 600 KB Output is correct

Subtask #3
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 1 ms 4444 KB Output is correct
3 Correct 0 ms 2396 KB Output is correct
4 Correct 1 ms 6492 KB Output is correct
5 Correct 1 ms 2396 KB Output is correct
6 Correct 1 ms 4444 KB Output is correct
7 Correct 1 ms 6492 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 1 ms 344 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 1 ms 2392 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 1 ms 344 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 1 ms 2396 KB Output is correct
21 Correct 1 ms 344 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 2396 KB Output is correct
25 Correct 1 ms 604 KB Output is correct
26 Correct 1 ms 600 KB Output is correct
27 Correct 1 ms 6492 KB Output is correct
28 Correct 1 ms 6496 KB Output is correct
29 Correct 1 ms 6492 KB Output is correct
30 Correct 1 ms 636 KB Output is correct
31 Correct 1 ms 604 KB Output is correct
32 Correct 1 ms 604 KB Output is correct
33 Correct 1 ms 608 KB Output is correct
34 Correct 1 ms 604 KB Output is correct
35 Correct 1 ms 604 KB Output is correct
36 Correct 1 ms 604 KB Output is correct
37 Correct 1 ms 604 KB Output is correct
38 Correct 1 ms 600 KB Output is correct
39 Correct 7 ms 4316 KB Output is correct
40 Correct 6 ms 4316 KB Output is correct
41 Correct 4 ms 2524 KB Output is correct
42 Correct 4 ms 4316 KB Output is correct
43 Correct 7 ms 2520 KB Output is correct
44 Correct 4 ms 2524 KB Output is correct
45 Correct 4 ms 2524 KB Output is correct
46 Correct 6 ms 4320 KB Output is correct
47 Correct 4 ms 4316 KB Output is correct
48 Correct 6 ms 4316 KB Output is correct
49 Correct 6 ms 2524 KB Output is correct
50 Correct 4 ms 7132 KB Output is correct

Subtask #4
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 4444 KB Output is correct
2 Correct 1 ms 6492 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 464 KB Output is correct
5 Correct 1 ms 600 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 0 ms 344 KB Output is correct
9 Correct 1 ms 604 KB Output is correct
10 Correct 1 ms 472 KB Output is correct
11 Correct 1 ms 604 KB Output is correct
12 Correct 1 ms 604 KB Output is correct
13 Correct 1 ms 604 KB Output is correct
14 Correct 0 ms 604 KB Output is correct
15 Correct 6 ms 2440 KB Output is correct
16 Correct 6 ms 2524 KB Output is correct
17 Correct 6 ms 2524 KB Output is correct
18 Correct 4 ms 2524 KB Output is correct
19 Correct 4 ms 2524 KB Output is correct
20 Correct 206 ms 84388 KB Output is correct
21 Correct 242 ms 78000 KB Output is correct
22 Correct 235 ms 78076 KB Output is correct
23 Correct 323 ms 77068 KB Output is correct
24 Correct 230 ms 77936 KB Output is correct
25 Correct 278 ms 81056 KB Output is correct
26 Correct 259 ms 77932 KB Output is correct
27 Correct 313 ms 77996 KB Output is correct
28 Correct 239 ms 77864 KB Output is correct

Subtask #5
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 6492 KB Output is correct
2 Correct 1 ms 4444 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 4444 KB Output is correct
5 Correct 0 ms 2396 KB Output is correct
6 Correct 1 ms 4444 KB Output is correct
7 Correct 1 ms 2524 KB Output is correct
8 Correct 1 ms 604 KB Output is correct
9 Correct 1 ms 604 KB Output is correct
10 Correct 1 ms 604 KB Output is correct
11 Correct 1 ms 472 KB Output is correct
12 Correct 6 ms 2524 KB Output is correct
13 Correct 6 ms 2524 KB Output is correct
14 Correct 4 ms 2524 KB Output is correct
15 Correct 212 ms 84244 KB Output is correct
16 Correct 301 ms 77084 KB Output is correct
17 Correct 260 ms 78224 KB Output is correct
18 Correct 229 ms 78528 KB Output is correct
19 Correct 266 ms 78312 KB Output is correct
20 Correct 324 ms 77008 KB Output is correct

Subtask #6
26.0 / 26.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 1 ms 4444 KB Output is correct
3 Correct 0 ms 2396 KB Output is correct
4 Correct 1 ms 6492 KB Output is correct
5 Correct 1 ms 2396 KB Output is correct
6 Correct 1 ms 4444 KB Output is correct
7 Correct 1 ms 6492 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 1 ms 344 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 1 ms 2392 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 1 ms 344 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 1 ms 2396 KB Output is correct
21 Correct 1 ms 344 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 2396 KB Output is correct
25 Correct 1 ms 604 KB Output is correct
26 Correct 1 ms 600 KB Output is correct
27 Correct 1 ms 6492 KB Output is correct
28 Correct 1 ms 6496 KB Output is correct
29 Correct 1 ms 6492 KB Output is correct
30 Correct 1 ms 636 KB Output is correct
31 Correct 1 ms 604 KB Output is correct
32 Correct 1 ms 604 KB Output is correct
33 Correct 1 ms 608 KB Output is correct
34 Correct 1 ms 604 KB Output is correct
35 Correct 1 ms 604 KB Output is correct
36 Correct 1 ms 604 KB Output is correct
37 Correct 1 ms 604 KB Output is correct
38 Correct 1 ms 600 KB Output is correct
39 Correct 7 ms 4316 KB Output is correct
40 Correct 6 ms 4316 KB Output is correct
41 Correct 4 ms 2524 KB Output is correct
42 Correct 4 ms 4316 KB Output is correct
43 Correct 7 ms 2520 KB Output is correct
44 Correct 4 ms 2524 KB Output is correct
45 Correct 4 ms 2524 KB Output is correct
46 Correct 6 ms 4320 KB Output is correct
47 Correct 4 ms 4316 KB Output is correct
48 Correct 6 ms 4316 KB Output is correct
49 Correct 6 ms 2524 KB Output is correct
50 Correct 4 ms 7132 KB Output is correct
51 Correct 1 ms 4444 KB Output is correct
52 Correct 1 ms 6492 KB Output is correct
53 Correct 1 ms 348 KB Output is correct
54 Correct 1 ms 464 KB Output is correct
55 Correct 1 ms 600 KB Output is correct
56 Correct 1 ms 348 KB Output is correct
57 Correct 1 ms 348 KB Output is correct
58 Correct 0 ms 344 KB Output is correct
59 Correct 1 ms 604 KB Output is correct
60 Correct 1 ms 472 KB Output is correct
61 Correct 1 ms 604 KB Output is correct
62 Correct 1 ms 604 KB Output is correct
63 Correct 1 ms 604 KB Output is correct
64 Correct 0 ms 604 KB Output is correct
65 Correct 6 ms 2440 KB Output is correct
66 Correct 6 ms 2524 KB Output is correct
67 Correct 6 ms 2524 KB Output is correct
68 Correct 4 ms 2524 KB Output is correct
69 Correct 4 ms 2524 KB Output is correct
70 Correct 206 ms 84388 KB Output is correct
71 Correct 242 ms 78000 KB Output is correct
72 Correct 235 ms 78076 KB Output is correct
73 Correct 323 ms 77068 KB Output is correct
74 Correct 230 ms 77936 KB Output is correct
75 Correct 278 ms 81056 KB Output is correct
76 Correct 259 ms 77932 KB Output is correct
77 Correct 313 ms 77996 KB Output is correct
78 Correct 239 ms 77864 KB Output is correct
79 Correct 1 ms 6492 KB Output is correct
80 Correct 1 ms 4444 KB Output is correct
81 Correct 1 ms 348 KB Output is correct
82 Correct 1 ms 4444 KB Output is correct
83 Correct 0 ms 2396 KB Output is correct
84 Correct 1 ms 4444 KB Output is correct
85 Correct 1 ms 2524 KB Output is correct
86 Correct 1 ms 604 KB Output is correct
87 Correct 1 ms 604 KB Output is correct
88 Correct 1 ms 604 KB Output is correct
89 Correct 1 ms 472 KB Output is correct
90 Correct 6 ms 2524 KB Output is correct
91 Correct 6 ms 2524 KB Output is correct
92 Correct 4 ms 2524 KB Output is correct
93 Correct 212 ms 84244 KB Output is correct
94 Correct 301 ms 77084 KB Output is correct
95 Correct 260 ms 78224 KB Output is correct
96 Correct 229 ms 78528 KB Output is correct
97 Correct 266 ms 78312 KB Output is correct
98 Correct 324 ms 77008 KB Output is correct
99 Correct 211 ms 78124 KB Output is correct
100 Correct 241 ms 78108 KB Output is correct
101 Correct 302 ms 77984 KB Output is correct
102 Correct 283 ms 78040 KB Output is correct
103 Correct 301 ms 78704 KB Output is correct
104 Correct 222 ms 77804 KB Output is correct
105 Correct 174 ms 76704 KB Output is correct