oj.uz

Submission #208137

# Submission time Handle Problem Language Result Execution time Memory
208137 2020-03-10T05:08:52 Z tri Soccer (JOI17_soccer) C++14
100 / 100
 481 ms 106600 KB 
#include <bits/stdc++.h>

using namespace std;

typedef long long ll;
typedef long double ld;
typedef pair<int, int> pi;
typedef pair<ll, ll> pl;

typedef vector<int> vi;
typedef vector<ld> vd;
typedef vector<ll> vl;

#define pb push_back
#define f first
#define s second

namespace debug {
    const int DEBUG = true;

    template<class T1, class T2>
    void pr(const pair<T1, T2> &x);

    template<class T, size_t SZ>
    void pr(const array<T, SZ> &x);

    template<class T>
    void pr(const vector<T> &x);

    template<class T>
    void pr(const set<T> &x);

    template<class T1, class T2>
    void pr(const map<T1, T2> &x);

    template<class T>
    void pr(const T &x) { if (DEBUG) cout << x; }

    template<class T, class... Ts>
    void pr(const T &first, const Ts &... rest) { pr(first), pr(rest...); }

    template<class T1, class T2>
    void pr(const pair<T1, T2> &x) { pr("{", x.f, ", ", x.s, "}"); }

    template<class T>
    void prIn(const T &x) {
        pr("{");
        bool fst = 1;
        for (auto &a : x) {
            pr(fst ? "" : ", ", a), fst = 0;
        }
        pr("}");
    }

    template<class T, size_t SZ>
    void pr(const array<T, SZ> &x) { prIn(x); }

    template<class T>
    void pr(const vector<T> &x) { prIn(x); }

    template<class T>
    void pr(const set<T> &x) { prIn(x); }

    template<class T1, class T2>
    void pr(const map<T1, T2> &x) { prIn(x); }

    void ps() { pr("\n"), cout << flush; }

    template<class Arg, class... Args>
    void ps(const Arg &first, const Args &... rest) {
        pr(first, " ");
        ps(rest...);
    }
}
using namespace debug;


const ll INF = 1e15;

int H, W;
ll A, B, C;
int N;

vector<pi> pts;

pi st;
pi ed;

ll distP[600][600];

int dI[] = {-1, 0, 1, 0};
int dJ[] = {0, -1, 0, 1};

bool valid(int i, int j) {
    return 0 <= i && i < H && 0 <= j && j < W;
}

void bfs() {
    for (int i = 0; i < H; i++) {
        for (int j = 0; j < W; j++) {
            distP[i][j] = INF;
        }
    }

    queue<pi> q;

    for (pi x :pts) {
        distP[x.f][x.s] = 0;
        q.push(x);
    }

    while (q.size()) {
        pi x = q.front();
        q.pop();

        ll cDist = distP[x.f][x.s];

        for (int d = 0; d < 4; d++) {
            int nI = x.f + dI[d], nJ = x.s + dJ[d];
            if (valid(nI, nJ)) {
                if (distP[nI][nJ] == INF) {
                    distP[nI][nJ] = cDist + 1;
                    q.push({nI, nJ});
                }
            }
        }
    }
}

inline int lin(int i, int j, int t) {
    return W * i + j + H * W * t;
}

const int MAXV = 501 * 501 * 3 + 10;
vector<pl> aL[MAXV];
ll dist[MAXV];

ll dijkstra(int sV, int eV) {
    fill(dist, dist + MAXV, INF);

    priority_queue<pl, vector<pl>, greater<pl>> q;

    q.push({0, sV});
    dist[sV] = 0;

    while (q.size()) {
        pl x = q.top();
        q.pop();

        ll cD = x.f;
        int cV = x.s;

        if (cV == eV) {
            return cD;
        }

        if (cD > dist[cV]) {
            continue;
        }


        for (pl aE : aL[cV]) {
            int aV = aE.f;
            ll eC = aE.s;

            if (cD + eC < dist[aV]) {
                dist[aV] = cD + eC;
                q.push({cD + eC, aV});
            }
        }
    }
//    ps(dist[eV]);
    assert(false);
    return -1;
}


int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);

    cin >> H >> W;
    H++, W++;
    cin >> A >> B >> C;
    cin >> N;

//    ps('h');

    for (int i = 0; i < N; i++) {
        int x, y;
        cin >> x >> y;
        pts.pb({x, y});
    }
    st = pts[0];
    ed = pts[N - 1];

//    ps("read");

    sort(pts.begin(), pts.end());
    pts.erase(unique(pts.begin(), pts.end()), pts.end());

    N = pts.size();

    bfs();

//    ps("fin bfs");

    for (int i = 0; i < H; i++) {
        for (int j = 0; j < W; j++) {
            for (int d = 0; d < 4; d++) {
                int nI = i + dI[d], nJ = j + dJ[d];
                if (valid(nI, nJ)) {
                    // kick
                    int t = d & 1;
                    assert(t != 2);
                    aL[lin(i, j, t)].pb({lin(nI, nJ, t), A});
                }
            }

            for (int t = 0; t < 2; t++) {
                // kick the ball
                aL[lin(i, j, 2)].pb({lin(i, j, t), B});

                // ball stop, person run to it
                aL[lin(i, j, t)].pb({lin(i, j, 2), distP[i][j] * C});
            }


            // run with ball
            for (int d = 0; d < 4; d++) {
                int nI = i + dI[d], nJ = j + dJ[d];

                if (valid(nI, nJ)) {
                    aL[lin(i, j, 2)].pb({lin(nI, nJ, 2), C});
                }
            }
//            if (i % 10 && j == 0) ps(i, j);
        }
    }

//    ps("added");

    int sV = lin(st.f, st.s, 2);
    int eV = lin(ed.f, ed.s, 2);

    ll ans = dijkstra(sV, eV);

    cout << ans << endl;
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 85 ms 44400 KB Output is correct
2 Correct 18 ms 24056 KB Output is correct
3 Correct 282 ms 105196 KB Output is correct
4 Correct 227 ms 103124 KB Output is correct
5 Correct 116 ms 52856 KB Output is correct

Subtask #2
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 227 ms 103156 KB Output is correct
2 Correct 216 ms 102080 KB Output is correct
3 Correct 253 ms 89704 KB Output is correct
4 Correct 392 ms 105104 KB Output is correct
5 Correct 273 ms 90212 KB Output is correct
6 Correct 353 ms 105064 KB Output is correct
7 Correct 283 ms 105160 KB Output is correct
8 Correct 279 ms 105064 KB Output is correct
9 Correct 208 ms 102104 KB Output is correct
10 Correct 60 ms 39408 KB Output is correct
11 Correct 358 ms 105152 KB Output is correct
12 Correct 340 ms 105192 KB Output is correct
13 Correct 268 ms 89828 KB Output is correct
14 Correct 264 ms 105084 KB Output is correct
15 Correct 164 ms 86648 KB Output is correct

Subtask #3
65.0 / 65.0

# Verdict Execution time Memory Grader output
1 Correct 85 ms 44400 KB Output is correct
2 Correct 18 ms 24056 KB Output is correct
3 Correct 282 ms 105196 KB Output is correct
4 Correct 227 ms 103124 KB Output is correct
5 Correct 116 ms 52856 KB Output is correct
6 Correct 227 ms 103156 KB Output is correct
7 Correct 216 ms 102080 KB Output is correct
8 Correct 253 ms 89704 KB Output is correct
9 Correct 392 ms 105104 KB Output is correct
10 Correct 273 ms 90212 KB Output is correct
11 Correct 353 ms 105064 KB Output is correct
12 Correct 283 ms 105160 KB Output is correct
13 Correct 279 ms 105064 KB Output is correct
14 Correct 208 ms 102104 KB Output is correct
15 Correct 60 ms 39408 KB Output is correct
16 Correct 358 ms 105152 KB Output is correct
17 Correct 340 ms 105192 KB Output is correct
18 Correct 268 ms 89828 KB Output is correct
19 Correct 264 ms 105084 KB Output is correct
20 Correct 164 ms 86648 KB Output is correct
21 Correct 100 ms 52472 KB Output is correct
22 Correct 447 ms 105052 KB Output is correct
23 Correct 451 ms 95340 KB Output is correct
24 Correct 398 ms 103096 KB Output is correct
25 Correct 395 ms 105188 KB Output is correct
26 Correct 444 ms 105316 KB Output is correct
27 Correct 346 ms 102344 KB Output is correct
28 Correct 459 ms 102552 KB Output is correct
29 Correct 481 ms 104820 KB Output is correct
30 Correct 347 ms 102512 KB Output is correct
31 Correct 255 ms 103160 KB Output is correct
32 Correct 322 ms 106600 KB Output is correct
33 Correct 366 ms 105064 KB Output is correct
34 Correct 215 ms 102104 KB Output is correct
35 Correct 379 ms 102636 KB Output is correct