160842025-03-30 20:23:45szilAutópálya inflációcpp17Time limit exceeded 36/1002.099s6132 KiB
#include <bits/stdc++.h>

using namespace std;
using ll = long long;

const ll MOD = 1e9+7;
const int MAXN = 3001;
const int MAXM = 6001;

const int BLOCK_CNT = 55;
const int BLOCK_SIZE = 60;

const ll MULTI = (1ll<<(1+BLOCK_SIZE))%MOD;

struct bigint {

    vector<uint64_t> data;

    bigint() {
        data.assign(BLOCK_CNT, ~0ull);
    }

    void clear() {
        data.assign(BLOCK_CNT, 0ull);
    }

    bool operator<(const bigint &rhs) {
        for (int i = 0; i < BLOCK_CNT; i++) {
            if (data[i] != rhs.data[i]) {
                return data[i] < rhs.data[i];
            }
        }
        return 0;
    }

    bigint operator+(const bigint &rhs) {
        bigint res;
        res.clear();
        bool carry = 0;
        for (int i = BLOCK_CNT-1; i >= 0; i--) {
            res.data[i] = data[i] + rhs.data[i] + carry;
            carry = (res.data[i] >> (BLOCK_SIZE + 1)) & 1;
            res.data[i] &= ~(1ull << (BLOCK_SIZE + 1));
        }

        return res;
    }

    void inflate() {
        bool carry = 0;
        for (int i = BLOCK_CNT-1; i >= 0; i--) {
            bool next_carry = (data[i] >> BLOCK_SIZE) & 1;
            data[i] &= ~(1ull << BLOCK_SIZE);
            data[i] <<= 1;
            data[i] |= carry;
            carry = next_carry;
        }
    }

    ll calc_ans() {
        ll ans = 0;
        ll mul = 1;
        for (int i = BLOCK_CNT-1; i >= 0; i--) {
            data[i] %= MOD;
            ans += data[i] * mul;
            ans %= MOD;
            mul *= MULTI;
            mul %= MOD;
        }
        return ans;
    }
};

int u[MAXM], v[MAXM];

void solve() {
    int n, m; cin >> n >> m;
    vector<bigint> w(m+1);
    for (int i = 1; i <= m; i++) {
        w[i].clear();
        cin >> u[i] >> v[i] >> w[i].data.back();
    }
    vector<bigint> dist_last(n+1);
    vector<int> first_seen(n+1, n);
    vector<bool> vis_last(n+1);
    dist_last[1].clear();
    vis_last[1] = 1;
    int is_ok = -1;
    for (int i = 1; i <= n; i++) {

        vector<bigint> dist_curr = dist_last;
        vector<bool> vis_curr = vis_last;
        for (int j = 1; j <= m; j++) {
            if (first_seen[u[j]] + 35 >= i && vis_last[u[j]] && dist_last[u[j]] + w[j] < dist_curr[v[j]]) {
                dist_curr[v[j]] = dist_last[u[j]] + w[j];
                vis_curr[v[j]] = 1;
                first_seen[v[j]] = min(first_seen[v[j]], i);
            }
        }
        for (int j = 1; j <= m; j++) {
            if (first_seen[v[j]] + 35 >= i && vis_last[v[j]] && dist_last[v[j]] + w[j] < dist_curr[u[j]]) {
                dist_curr[u[j]] = dist_last[v[j]] + w[j];
                vis_curr[u[j]] = 1;
                first_seen[u[j]] = min(first_seen[u[j]], i);
            }
        }

        dist_last = dist_curr;
        vis_last = vis_curr;

        for (int j = 1; j <= m; j++) {
            w[j].inflate();
        }
    }

    for (int i = 2; i <= n; i++) {
        cout << dist_last[i].calc_ans() << "\n";
    }
    cout << "\n";
}

int main() {
    ios::sync_with_stdio(0); cin.tie(0);
    int t = 1; 
    // cin >> t;
    while (t--) solve();
    return 0;
}
SubtaskSumTestVerdictTimeMemory
subtask10/0
1Accepted1ms316 KiB
2Time limit exceeded2.085s5940 KiB
subtask20/8
3Time limit exceeded2.088s4404 KiB
4Time limit exceeded2.088s4404 KiB
5Time limit exceeded2.088s4404 KiB
6Time limit exceeded2.088s4404 KiB
7Time limit exceeded2.085s4588 KiB
subtask315/15
8Accepted1ms508 KiB
9Accepted1ms316 KiB
10Accepted1ms316 KiB
11Accepted1ms316 KiB
12Accepted1ms316 KiB
13Accepted1ms316 KiB
14Accepted1ms316 KiB
15Accepted1ms316 KiB
16Accepted1ms316 KiB
17Accepted1ms316 KiB
18Accepted1ms316 KiB
subtask40/34
19Time limit exceeded2.099s5944 KiB
20Time limit exceeded2.099s5816 KiB
21Time limit exceeded2.099s5844 KiB
22Time limit exceeded2.099s5784 KiB
23Time limit exceeded2.078s5940 KiB
24Time limit exceeded2.081s5940 KiB
25Time limit exceeded2.079s5940 KiB
26Time limit exceeded2.081s5940 KiB
27Time limit exceeded2.084s5940 KiB
28Time limit exceeded2.086s4404 KiB
29Time limit exceeded2.085s4684 KiB
30Time limit exceeded2.086s4148 KiB
31Time limit exceeded2.086s4404 KiB
32Time limit exceeded2.089s5940 KiB
33Time limit exceeded2.091s5940 KiB
subtask521/21
34Accepted130ms1332 KiB
35Accepted234ms1588 KiB
36Accepted236ms1600 KiB
37Accepted236ms1592 KiB
38Accepted300ms1588 KiB
39Accepted303ms1824 KiB
40Accepted234ms1588 KiB
41Accepted233ms1588 KiB
42Accepted79ms1076 KiB
43Accepted81ms1076 KiB
44Accepted81ms1076 KiB
45Accepted81ms1260 KiB
46Accepted79ms1076 KiB
47Accepted72ms1076 KiB
48Accepted128ms1332 KiB
49Accepted128ms1336 KiB
subtask60/22
50Time limit exceeded2.086s5824 KiB
51Time limit exceeded2.086s5940 KiB
52Time limit exceeded2.088s6132 KiB
53Time limit exceeded2.088s5940 KiB
54Time limit exceeded2.076s5940 KiB
55Time limit exceeded2.076s6124 KiB
56Time limit exceeded2.076s5940 KiB
57Time limit exceeded2.078s5940 KiB
58Accepted307ms1588 KiB
59Time limit exceeded2.085s4416 KiB
60Time limit exceeded2.085s4404 KiB
61Time limit exceeded2.086s4404 KiB
62Time limit exceeded2.088s4404 KiB
63Time limit exceeded2.079s4600 KiB
64Time limit exceeded2.079s5808 KiB
65Time limit exceeded2.079s5908 KiB
66Time limit exceeded2.086s5944 KiB