oj.uz

Submission #100554

# Submission time Handle Problem Language Result Execution time Memory
100554 2019-03-12T08:39:09 Z alexpetrescu Crocodile's Underground City (IOI11_crocodile) C++14
100 / 100
 695 ms 59972 KB 
#include "crocodile.h"
#include <vector>

#define INF 1000000000
#define MAXN 100000

struct myc {
    int best, next;
    inline bool operator < (const myc &u) const {
        return next < u.next;
    }
} d[MAXN];

struct mom {
    int x, y;
};
std::vector < mom > g[MAXN];
int heap[MAXN + 1], poz[MAXN];
bool done[MAXN];

inline void mySwap(int p, int q) {
    int aux = heap[p];
    heap[p] = heap[q];
    heap[q] = aux;
    poz[heap[p]] = p;
    poz[heap[q]] = q;
}

inline void urcare(int p) {
    while (p > 1 && d[heap[p]] < d[heap[p / 2]]) {
        mySwap(p, p / 2);
        p /= 2;
    }
}

inline void coborare(int p) {
    int q;
    bool f = 1;
    while (f && (q = 2 * p) <= heap[0]) {
        if (q < heap[0] && d[heap[q + 1]] < d[heap[q]])
            q++;
        if (d[heap[q]] < d[heap[p]]) {
            mySwap(p, q);
            p = q;
        } else
            f = 0;
    }
}

int travel_plan(int N, int M, int R[][2], int L[], int K, int P[]) {
    for (int i = 0; i < M; i++) g[R[i][0]].push_back({R[i][1], L[i]}), g[R[i][1]].push_back({R[i][0], L[i]});
    for (int i = 0; i < N; i++) d[i] = {INF, INF}, done[i] = 0;
    for (int i = 0; i < K; i++) d[P[i]] = {0, 0};
    for (int i = 0; i < N; i++) heap[i + 1] = i, poz[i] = i + 1;
    heap[0] = N;
    for (int i = N; i > 0; i--)
        coborare(i);
    while (heap[1] != 0) {
        int x = heap[1];
        done[x] = 1;
        for (auto &y : g[x]) {
            if (done[y.x] == 0) {
                long long val = d[x].next + y.y;
                if (val < d[y.x].next) {
                    if (val < d[y.x].best) {
                        d[y.x].next = d[y.x].best;
                        d[y.x].best = val;
                    } else
                        d[y.x].next = val;
                    urcare(poz[y.x]);
                }
            }
        }
        d[x] = {INF, INF};
        coborare(1);
    }
    return d[0].next;
}

Subtask #1
46.0 / 46.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 2688 KB Output is correct
2 Correct 4 ms 2688 KB Output is correct
3 Correct 4 ms 2688 KB Output is correct
4 Correct 5 ms 2688 KB Output is correct
5 Correct 5 ms 2816 KB Output is correct
6 Correct 4 ms 2816 KB Output is correct
7 Correct 5 ms 2816 KB Output is correct
8 Correct 5 ms 2816 KB Output is correct

Subtask #2
43.0 / 43.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 2688 KB Output is correct
2 Correct 4 ms 2688 KB Output is correct
3 Correct 4 ms 2688 KB Output is correct
4 Correct 5 ms 2688 KB Output is correct
5 Correct 5 ms 2816 KB Output is correct
6 Correct 4 ms 2816 KB Output is correct
7 Correct 5 ms 2816 KB Output is correct
8 Correct 5 ms 2816 KB Output is correct
9 Correct 6 ms 3072 KB Output is correct
10 Correct 4 ms 2688 KB Output is correct
11 Correct 5 ms 2816 KB Output is correct
12 Correct 8 ms 3200 KB Output is correct
13 Correct 7 ms 3200 KB Output is correct
14 Correct 4 ms 2688 KB Output is correct
15 Correct 5 ms 2816 KB Output is correct

Subtask #3
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 2688 KB Output is correct
2 Correct 4 ms 2688 KB Output is correct
3 Correct 4 ms 2688 KB Output is correct
4 Correct 5 ms 2688 KB Output is correct
5 Correct 5 ms 2816 KB Output is correct
6 Correct 4 ms 2816 KB Output is correct
7 Correct 5 ms 2816 KB Output is correct
8 Correct 5 ms 2816 KB Output is correct
9 Correct 6 ms 3072 KB Output is correct
10 Correct 4 ms 2688 KB Output is correct
11 Correct 5 ms 2816 KB Output is correct
12 Correct 8 ms 3200 KB Output is correct
13 Correct 7 ms 3200 KB Output is correct
14 Correct 4 ms 2688 KB Output is correct
15 Correct 5 ms 2816 KB Output is correct
16 Correct 649 ms 56340 KB Output is correct
17 Correct 174 ms 14600 KB Output is correct
18 Correct 103 ms 16120 KB Output is correct
19 Correct 695 ms 59972 KB Output is correct
20 Correct 377 ms 49636 KB Output is correct
21 Correct 53 ms 7936 KB Output is correct
22 Correct 321 ms 46184 KB Output is correct