oj.uz

답안 #539127

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
539127 2022-03-18T12:49:10 Z Cross_Ratio Pinball (JOI14_pinball) C++14
100 / 100
 245 ms 26240 KB 
#include <bits/stdc++.h>
#define int long long
using namespace std;
const int INF = 1e18;
struct SegTree {
    vector<int> seg;
    int MAX;
    SegTree(int N) {
        int i;
        for(i=1;i<2*N;i*=2) {}
        seg.resize(i);
        MAX = i;
        for(i=0;i<MAX;i++) seg[i]=INF;
    }
    void update(int n) {
        n += MAX/2;
        n /= 2;
        while(n) {
            seg[n] = min(seg[2*n],seg[2*n+1]);
            n /= 2;
        }
    }
    void Edit(int n, int a) {
        seg[n+MAX/2] = min(seg[n+MAX/2],a);
        update(n);
    }
    int sum(int s, int e, int n, int ns, int ne) {
        if(e<=ns||ne<=s) return INF;
        if(s<=ns&&ne<=e) return seg[n];
        int mid = ns + ne >> 1;
        return min(sum(s,e,2*n,ns,mid),sum(s,e,2*n+1,mid,ne));
    }
    int sum(int s, int e) {
        return sum(s,e,1,0,MAX/2);
    }
};
vector<int> idx;
int id(int n) {
    return lower_bound(idx.begin(),idx.end(),n)-idx.begin();
}
int A[100005];
int B[100005];
int C[100005];
int D[100005];
signed main() {
    cin.sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);
    int N, M;
    cin >> N >> M;
    int i, j;
    for(i=0;i<N;i++) {
        cin >> A[i] >> B[i] >> C[i] >> D[i];
        idx.push_back(A[i]);
        idx.push_back(B[i]);
        idx.push_back(C[i]);
    }
    if(M==1) {
        cout << 0;
        return 0;
    }
    idx.push_back(1);
    idx.push_back(M);
    sort(idx.begin(),idx.end());
    idx.erase(unique(idx.begin(),idx.end()),idx.end());
    SegTree tree1(idx.size()+5),tree2(idx.size()+5);
    tree1.Edit(id(1),0);
    tree2.Edit(id(M),0);
    int ans = INF;
    for(i=0;i<N;i++) {
        int l = id(A[i]);
        int r = id(B[i]);
        int po = id(C[i]);
        int c1 = tree1.sum(l, r+1);
        tree1.Edit(po,c1+D[i]);
        int c2 = tree2.sum(l, r+1);
        tree2.Edit(po,c2+D[i]);
        ans = min(ans, c1+c2+D[i]);
    }
    cout << (ans == INF ? -1 : ans);
}

Compilation message

pinball.cpp: In member function 'long long int SegTree::sum(long long int, long long int, long long int, long long int, long long int)':
pinball.cpp:30:22: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   30 |         int mid = ns + ne >> 1;
      |                   ~~~^~~~
pinball.cpp: In function 'int main()':
pinball.cpp:51:12: warning: unused variable 'j' [-Wunused-variable]
   51 |     int i, j;
      |            ^

Subtask #1
11.0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 1 ms 352 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct

Subtask #2
18.0 / 18.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 1 ms 352 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 1 ms 336 KB Output is correct

Subtask #3
22.0 / 22.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 1 ms 352 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 1 ms 336 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 2 ms 468 KB Output is correct
18 Correct 1 ms 468 KB Output is correct
19 Correct 2 ms 532 KB Output is correct
20 Correct 2 ms 468 KB Output is correct
21 Correct 1 ms 472 KB Output is correct
22 Correct 2 ms 596 KB Output is correct
23 Correct 2 ms 596 KB Output is correct
24 Correct 2 ms 596 KB Output is correct

Subtask #4
49.0 / 49.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 1 ms 352 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 1 ms 336 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 2 ms 468 KB Output is correct
18 Correct 1 ms 468 KB Output is correct
19 Correct 2 ms 532 KB Output is correct
20 Correct 2 ms 468 KB Output is correct
21 Correct 1 ms 472 KB Output is correct
22 Correct 2 ms 596 KB Output is correct
23 Correct 2 ms 596 KB Output is correct
24 Correct 2 ms 596 KB Output is correct
25 Correct 15 ms 2264 KB Output is correct
26 Correct 45 ms 4784 KB Output is correct
27 Correct 136 ms 10936 KB Output is correct
28 Correct 114 ms 10840 KB Output is correct
29 Correct 93 ms 9256 KB Output is correct
30 Correct 145 ms 10832 KB Output is correct
31 Correct 218 ms 17948 KB Output is correct
32 Correct 187 ms 13856 KB Output is correct
33 Correct 23 ms 4172 KB Output is correct
34 Correct 93 ms 13360 KB Output is correct
35 Correct 135 ms 26240 KB Output is correct
36 Correct 245 ms 26224 KB Output is correct
37 Correct 210 ms 26240 KB Output is correct
38 Correct 195 ms 26220 KB Output is correct