160712025-03-30 19:11:40szilAutópálya inflációcpp17Time limit exceeded 15/1002.088s5656 KiB
#include <bits/stdc++.h>

using namespace std;
using ll = long long;

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

const int BLOCK_CNT = 50;
const int BLOCK_SIZE = 62;

const ll MULTI = (1ll<<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];
            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);
    dist_last[1].clear();
    for (int i = 1; i <= n; i++) {
        vector<bigint> dist_curr = dist_last;
        for (int j = 1; j <= m; j++) {
            if (dist_last[u[j]] + w[j] < dist_curr[v[j]]) {
                dist_curr[v[j]] = dist_last[u[j]] + w[j];
            }
        }
        for (int j = 1; j <= m; j++) {
            if (dist_last[v[j]] + w[j] < dist_curr[u[j]]) {
                dist_curr[u[j]] = dist_last[v[j]] + w[j];
            }
        }

        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
1Accepted1ms508 KiB
2Time limit exceeded2.088s5640 KiB
subtask20/8
3Time limit exceeded2.076s4312 KiB
4Time limit exceeded2.076s4304 KiB
5Time limit exceeded2.075s4316 KiB
6Time limit exceeded2.076s4504 KiB
7Time limit exceeded2.086s4460 KiB
subtask315/15
8Accepted1ms316 KiB
9Accepted1ms316 KiB
10Accepted1ms316 KiB
11Accepted1ms508 KiB
12Accepted1ms316 KiB
13Accepted1ms316 KiB
14Accepted1ms316 KiB
15Accepted1ms316 KiB
16Accepted1ms316 KiB
17Accepted1ms316 KiB
18Accepted1ms316 KiB
subtask40/34
19Time limit exceeded2.079s5616 KiB
20Time limit exceeded2.081s5440 KiB
21Time limit exceeded2.081s5428 KiB
22Time limit exceeded2.081s5636 KiB
23Time limit exceeded2.084s5640 KiB
24Time limit exceeded2.084s5428 KiB
25Time limit exceeded2.084s5428 KiB
26Time limit exceeded2.084s5636 KiB
27Time limit exceeded2.088s5416 KiB
28Time limit exceeded2.088s4148 KiB
29Time limit exceeded2.088s4148 KiB
30Time limit exceeded2.088s4064 KiB
31Time limit exceeded2.078s4304 KiB
32Time limit exceeded2.078s5632 KiB
33Time limit exceeded2.079s5620 KiB
subtask50/21
34Wrong answer272ms1076 KiB
35Accepted528ms1588 KiB
36Accepted527ms1588 KiB
37Accepted527ms1588 KiB
38Accepted527ms1588 KiB
39Accepted527ms1588 KiB
40Wrong answer518ms1588 KiB
41Wrong answer517ms1732 KiB
42Wrong answer145ms1076 KiB
43Wrong answer149ms1076 KiB
44Wrong answer149ms1076 KiB
45Wrong answer149ms820 KiB
46Wrong answer148ms1076 KiB
47Wrong answer136ms820 KiB
48Wrong answer263ms1268 KiB
49Wrong answer263ms1076 KiB
subtask60/22
50Time limit exceeded2.075s5652 KiB
51Time limit exceeded2.076s5644 KiB
52Time limit exceeded2.075s5612 KiB
53Time limit exceeded2.076s5636 KiB
54Time limit exceeded2.082s5644 KiB
55Time limit exceeded2.082s5644 KiB
56Time limit exceeded2.084s5656 KiB
57Time limit exceeded2.082s5428 KiB
58Wrong answer637ms1588 KiB
59Time limit exceeded2.076s4420 KiB
60Time limit exceeded2.078s4312 KiB
61Time limit exceeded2.076s4320 KiB
62Time limit exceeded2.082s4272 KiB
63Time limit exceeded2.082s4292 KiB
64Time limit exceeded2.082s5428 KiB
65Time limit exceeded2.082s5624 KiB
66Time limit exceeded2.082s5428 KiB