160762025-03-30 19:31:44szilAutópálya 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 = 32;

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] &= ~(1ll << (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] &= ~(1ll << 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--) {
            ans += data[i] * mul;
            ans %= MOD;
            mul *= MULTI;
            mul %= MOD;
        }
        return ans;
    }
};

int u[MAXM], v[MAXM];
bool vis[MAXN];

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();
        // ll x;
        // cin >> u[i] >> v[i] >> x;
        // for (int j = BLOCK_CNT-1; j >= 0; j--) {
        //     w[i].data[j] = x & ((1ll<<(1+BLOCK_SIZE))-1);
        //     x >>= (1 + BLOCK_SIZE);
        // }
    }
    vector<bigint> dist_last(n+1);
    dist_last[1].clear();
    vis[1] = 1;
    for (int i = 1; i <= n; i++) {
        vector<bigint> dist_curr = dist_last;
        for (int j = 1; j <= m; j++) {
            if (vis[u[j]] && dist_last[u[j]] + w[j] < dist_curr[v[j]]) {
                dist_curr[v[j]] = dist_last[u[j]] + w[j];
                vis[v[j]] = 1;
            }
        }
        for (int j = 1; j <= m; j++) {
            if (vis[v[j]] && dist_last[v[j]] + w[j] < dist_curr[u[j]]) {
                dist_curr[u[j]] = dist_last[v[j]] + w[j];
                vis[u[j]] = 1;
            }
        }

        dist_last = dist_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
1Accepted1ms500 KiB
2Time limit exceeded2.086s6016 KiB
subtask20/8
3Time limit exceeded2.082s4796 KiB
4Time limit exceeded2.084s4608 KiB
5Time limit exceeded2.084s4816 KiB
6Time limit exceeded2.082s4608 KiB
7Time limit exceeded2.088s4612 KiB
subtask315/15
8Accepted1ms508 KiB
9Accepted1ms316 KiB
10Accepted1ms316 KiB
11Accepted1ms316 KiB
12Accepted1ms316 KiB
13Accepted1ms316 KiB
14Accepted1ms316 KiB
15Accepted1ms504 KiB
16Accepted1ms508 KiB
17Accepted1ms316 KiB
18Accepted1ms316 KiB
subtask40/34
19Time limit exceeded2.099s6020 KiB
20Time limit exceeded2.099s6048 KiB
21Time limit exceeded2.099s6024 KiB
22Time limit exceeded2.099s6032 KiB
23Time limit exceeded2.075s6028 KiB
24Time limit exceeded2.075s6036 KiB
25Time limit exceeded2.075s5972 KiB
26Time limit exceeded2.075s6128 KiB
27Time limit exceeded2.075s5940 KiB
28Time limit exceeded2.075s4612 KiB
29Time limit exceeded2.075s4616 KiB
30Time limit exceeded2.076s4176 KiB
31Time limit exceeded2.088s4744 KiB
32Time limit exceeded2.088s6016 KiB
33Time limit exceeded2.088s6016 KiB
subtask521/21
34Accepted331ms1560 KiB
35Accepted683ms1836 KiB
36Accepted684ms1844 KiB
37Accepted685ms1844 KiB
38Accepted684ms1588 KiB
39Accepted685ms1588 KiB
40Accepted675ms1844 KiB
41Accepted679ms1848 KiB
42Accepted180ms1132 KiB
43Accepted171ms1076 KiB
44Accepted171ms1220 KiB
45Accepted171ms1272 KiB
46Accepted179ms1140 KiB
47Accepted166ms1104 KiB
48Accepted328ms1524 KiB
49Accepted326ms1360 KiB
subtask60/22
50Time limit exceeded2.092s6032 KiB
51Time limit exceeded2.092s6028 KiB
52Time limit exceeded2.092s6024 KiB
53Time limit exceeded2.092s6132 KiB
54Time limit exceeded2.079s6028 KiB
55Time limit exceeded2.081s6020 KiB
56Time limit exceeded2.081s6132 KiB
57Time limit exceeded2.081s5940 KiB
58Accepted714ms1828 KiB
59Time limit exceeded2.089s4616 KiB
60Time limit exceeded2.089s4612 KiB
61Time limit exceeded2.089s4800 KiB
62Time limit exceeded2.088s4404 KiB
63Time limit exceeded2.081s4584 KiB
64Time limit exceeded2.081s6008 KiB
65Time limit exceeded2.081s6012 KiB
66Time limit exceeded2.088s6132 KiB