QOJ.ac

QOJ

IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#598678#7184. Transport Plusesxuanbac05WA 0ms3904kbC++173.0kb2024-09-28 22:56:472024-09-28 22:56:51

Judging History

This is the latest submission verdict.

  • [2024-09-28 22:56:51]
  • Judged
  • Verdict: WA
  • Time: 0ms
  • Memory: 3904kb
  • [2024-09-28 22:56:47]
  • Submitted

answer

#include <bits/stdc++.h>
#define ll long long
#define fi first
#define se second
#define endl '\n'
#define MASK(i) (1LL << (i))
#define ull unsigned long long
#define ld long double
#define pb push_back
#define all(x) (x).begin() , (x).end()
#define BIT(x , i) ((x >> (i)) & 1)
#define TASK "task"
#define sz(s) (int) (s).size()
 
using namespace std;
const int mxN = 5e5 + 227;
const int inf = 1e9 + 277;
const int mod = 1e9 + 7;
const ll infll = 1e18 + 7;
const int base = 307;
const int LOG = 20;
 
template <typename T1, typename T2> bool minimize(T1 &a, T2 b) {
    if (a > b) {a = b; return true;} return false;
}
template <typename T1, typename T2> bool maximize(T1 &a, T2 b) {
    if (a < b) {a = b; return true;} return false;
}
 
struct Trace{
    int id, x, y;
};

int n;
double t;
pair<int, int> sta, fin, a[mxN];
 
double getDist(int x, int y, int u, int v) {
    return sqrt(1LL * (x - u) * (x - u) + 1LL * (y - v) * (y - v));
}

void solve()
{
    cin >> n >> t >> sta.fi >> sta.se >> fin.fi >> fin.se;
    for (int i = 1; i <= n; i++) {
        cin >> a[i].fi >> a[i].se;
    }

    double res = getDist(sta.fi, sta.se, fin.fi, fin.se);

    vector<Trace> trace;
    for (int i = 1; i <= n; i++) {
        for (int d1 = 0; d1 < 2; d1++) 
        for (int d2 = 0; d2 < 2; d2++) {
            int x = (d1 == 0 ? sta.fi : a[i].fi);
            int y = (d1 == 0 ? a[i].se : sta.se);
            int u = (d2 == 0 ? a[i].fi : fin.fi);
            int v = (d2 == 0 ? fin.se : a[i].se);

            if (minimize(res, getDist(sta.fi, sta.se, x, y) + getDist(u, v, fin.fi, fin.se) + t) == true) {
                trace.clear();
                trace.pb({0, x, y});
                trace.pb({i, u, v});
                trace.pb({0, fin.fi, fin.se});
            }
        }
    }

    for (int i = 1; i <= n; i++) {
        for (int j = 1; j <= n; j++) {
            if (i == j) continue;
            for (int d1 = 0; d1 < 2; d1++) 
            for (int d2 = 0; d2 < 2; d2++) {
                int x = (d1 == 0 ? sta.fi : a[i].fi);
                int y = (d1 == 0 ? a[i].se : sta.se);
                int u = (d2 == 0 ? a[j].fi : fin.fi);
                int v = (d2 == 0 ? fin.se : a[j].se);

                if (minimize(res, getDist(sta.fi, sta.se, x, y) + t + t + getDist(u, v, fin.fi, fin.se)) == true) {
                    trace.clear();
                    trace.pb({0, x, y});
                    trace.pb({i, a[i].fi, a[j].se});
                    trace.pb({j, u, v});
                    trace.pb({0, fin.fi, fin.se});
                }
            }
        }
    }

    cout << fixed << setprecision(6) << res << endl;
    cout << sz(trace) << endl;
    for (auto it : trace) cout << it.id << " " << it.x << " " << it.y << endl;
}
 
int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    // freopen(TASK".inp" , "r" , stdin);
    // freopen(TASK".out" , "w" , stdout);
 
    int tc = 1;
    //cin >> tc;
    while(tc--) {
        solve();
    }
    return 0;
}

Details

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Test #1:

score: 100
Accepted
time: 0ms
memory: 3732kb

input:

1 2
1 1
5 3
6 2

output:

4.000000
3
0 1 2
1 6 3
0 5 3

result:

ok correct

Test #2:

score: 0
Accepted
time: 0ms
memory: 3824kb

input:

2 1
1 1
6 1
1 3
6 3

output:

2.000000
4
0 1 1
1 1 3
2 6 1
0 6 1

result:

ok correct

Test #3:

score: 0
Accepted
time: 0ms
memory: 3788kb

input:

0 0
1 1
1 1

output:

0.000000
0

result:

ok correct

Test #4:

score: -100
Wrong Answer
time: 0ms
memory: 3904kb

input:

0 0
100 100
0 0

output:

141.421356
0

result:

wrong answer arrived at (100.000000, 100.000000) instead of (0.000000, 0.000000)