oj.uz

답안 #336316

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
336316 2020-12-15T04:30:26 Z camnguyenmeow Relay Marathon (NOI20_relaymarathon) C++14
0 / 100
 369 ms 397164 KB 
#include <bits/stdc++.h>
using namespace std;
#define ll long
#define pii pair<int,int>
#define fr first
#define sc second
#define pow2(i) (1<<i)
#define eb emplace_back
#define mp make_pair
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace __gnu_pbds;
template <typename T> using oset = tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;
#define FOR(_i, _s, _n) 	for (int _i = _s; _i <= _n; ++_i)
#define FOD(_i, _s, _n)	    for (int _i = _s; _i >= _n; --_i)
#define firstbit(_mask)     __builtin_ctz(_mask)
#define lastbit(_mask)      __builtin_clz(_mask)
#define countbit(_mask)     __builtin_popcount(_mask)
int getbit(int mask, int i) {
    return (mask >> i) & 1;
}
void flipbit(int &mask, int i) {
    mask ^= (1 << i);
}
void setbit(int &mask, int i) {
    mask |= (1 << i);
}
template <typename T> inline void read(T &x) {
    x = 0; char c;
    while (!isdigit(c = getchar()));
    do x = x*10 + c - '0';
    while (isdigit(c = getchar()));
}
template <typename T> inline void write(T x) {
    if (x > 9) write(x/10);
    putchar(x % 10 + 48);
}
const int dd[4]={-1, 0, 1, 0}, dc[4]={0, 1, 0, -1};
//#define PROBLEMS            "RELAYMARATHON"
#ifdef PROBLEMS
    #define cin fi
    #define cout fo
    ifstream fi (PROBLEMS".inp");
    ofstream fo (PROBLEMS".out");
#endif
#define camnguyenmeow ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0);
/*   /\_/\
    (= ._.)
    / >?  \>$
*/
int n, m, k, firstnear[5001], secondnear[5001], a[5001];
ll c[5001][5001];
bool sp[5001];
int main()
{
    camnguyenmeow;
    memset(c, 0x3f, sizeof(c));
    cin >> n >> m >> k;
    int x, y;
    ll z;
    FOR(i, 1, m) {
        cin >> x >> y >> z;
        c[x][y] = c[y][x] = z;
    }
    FOR(i, 1, k) {
        cin >> a[i];
        sp[a[i]] = true;
    }
    FOR(i, 1, n)
        FOR(u, 1, n)
            FOR(v, 1, n) {
                c[u][v] = min(c[u][v], c[u][i] + c[i][v]);
                if (sp[v] && v != firstnear[u]) {
                    if (c[u][firstnear[u]] > c[u][v]) {
                        secondnear[u] = firstnear[u];
                        firstnear[u] = v;
                    } else if (c[u][secondnear[u]] > c[u][v])
                        secondnear[u] = v;
                }
            }
    auto check = [&] (int i, int j, int k, int l) {
        if (i == j || i == k || i == l || j == k || j == l || k == l) return false;
        return true;
    };
    ll ans = INT_MAX;
    FOR(i, 1, k)
        FOR(j, 1, k) {
            if (i == j) continue;
            int a1 = a[i], b1 = a[j], d1, d2;
            d1 = firstnear[b1], d2 = secondnear[b1];
            if (check(a1, b1, d1, d2))
                ans = min(ans, c[a1][d1] + c[b1][d2]);
            FOR(z, 1, k) {
                int a2 = a[z];
                if (check(a1, a2, b1, d1))
                    ans = min(ans, c[a1][a2] + c[b1][d1]);
            }
        }
    cout << ans;
}

Subtask #1
0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 98 ms 196076 KB Output is correct
2 Correct 100 ms 196076 KB Output is correct
3 Correct 99 ms 196076 KB Output is correct
4 Correct 101 ms 196096 KB Output is correct
5 Correct 99 ms 196224 KB Output is correct
6 Correct 103 ms 196332 KB Output is correct
7 Correct 107 ms 196076 KB Output is correct
8 Correct 98 ms 196076 KB Output is correct
9 Correct 100 ms 196076 KB Output is correct
10 Correct 100 ms 196076 KB Output is correct
11 Correct 104 ms 196076 KB Output is correct
12 Correct 99 ms 196076 KB Output is correct
13 Correct 99 ms 196076 KB Output is correct
14 Correct 101 ms 196076 KB Output is correct
15 Correct 100 ms 196076 KB Output is correct
16 Correct 100 ms 196076 KB Output is correct
17 Correct 102 ms 196204 KB Output is correct
18 Correct 100 ms 196076 KB Output is correct
19 Correct 98 ms 196076 KB Output is correct
20 Correct 100 ms 196204 KB Output is correct
21 Correct 99 ms 196096 KB Output is correct
22 Incorrect 99 ms 196076 KB Output isn't correct
23 Halted 0 ms 0 KB -

Subtask #2
0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 98 ms 196076 KB Output is correct
2 Correct 100 ms 196076 KB Output is correct
3 Correct 99 ms 196076 KB Output is correct
4 Correct 101 ms 196096 KB Output is correct
5 Correct 99 ms 196224 KB Output is correct
6 Correct 103 ms 196332 KB Output is correct
7 Correct 107 ms 196076 KB Output is correct
8 Correct 98 ms 196076 KB Output is correct
9 Correct 100 ms 196076 KB Output is correct
10 Correct 100 ms 196076 KB Output is correct
11 Correct 104 ms 196076 KB Output is correct
12 Correct 99 ms 196076 KB Output is correct
13 Correct 99 ms 196076 KB Output is correct
14 Correct 101 ms 196076 KB Output is correct
15 Correct 100 ms 196076 KB Output is correct
16 Correct 100 ms 196076 KB Output is correct
17 Correct 102 ms 196204 KB Output is correct
18 Correct 100 ms 196076 KB Output is correct
19 Correct 98 ms 196076 KB Output is correct
20 Correct 100 ms 196204 KB Output is correct
21 Correct 99 ms 196096 KB Output is correct
22 Incorrect 99 ms 196076 KB Output isn't correct
23 Halted 0 ms 0 KB -

Subtask #3
0 / 25.0

# 결과 실행 시간 메모리 Grader output
1 Runtime error 369 ms 397164 KB Execution killed with signal 11 (could be triggered by violating memory limits)
2 Halted 0 ms 0 KB -

Subtask #4
0 / 58.0

# 결과 실행 시간 메모리 Grader output
1 Correct 98 ms 196076 KB Output is correct
2 Correct 100 ms 196076 KB Output is correct
3 Correct 99 ms 196076 KB Output is correct
4 Correct 101 ms 196096 KB Output is correct
5 Correct 99 ms 196224 KB Output is correct
6 Correct 103 ms 196332 KB Output is correct
7 Correct 107 ms 196076 KB Output is correct
8 Correct 98 ms 196076 KB Output is correct
9 Correct 100 ms 196076 KB Output is correct
10 Correct 100 ms 196076 KB Output is correct
11 Correct 104 ms 196076 KB Output is correct
12 Correct 99 ms 196076 KB Output is correct
13 Correct 99 ms 196076 KB Output is correct
14 Correct 101 ms 196076 KB Output is correct
15 Correct 100 ms 196076 KB Output is correct
16 Correct 100 ms 196076 KB Output is correct
17 Correct 102 ms 196204 KB Output is correct
18 Correct 100 ms 196076 KB Output is correct
19 Correct 98 ms 196076 KB Output is correct
20 Correct 100 ms 196204 KB Output is correct
21 Correct 99 ms 196096 KB Output is correct
22 Incorrect 99 ms 196076 KB Output isn't correct
23 Halted 0 ms 0 KB -