Submission #233253

#	Time	Username	Problem	Language	Result	Execution time	Memory
233253		VEGAnn	Tenis (COI19_tenis)	C++14	18 / 100	1092 ms	4480 KiB

tenis

#include <bits/stdc++.h>
using namespace std;
const int N = 100100;
const int md = int(1e9) + 7;
int loc[3][N], n, q, a[3][N];
bool mrk[N];

int main(){
    ios_base::sync_with_stdio(0); cin.tie(0);

#ifdef _LOCAL
    freopen("in.txt","r",stdin);
#endif // _LOCAL

    cin >> n >> q;

    for (int tp = 0; tp < 3; tp++)
    for (int i = 0; i < n; i++){
        int x; cin >> x;
        x--;

        loc[tp][x] = i;
        a[tp][i] = x;
    }

    for (; q; q--){
        int tp; cin >> tp;

        if (tp == 1){
            int x; cin >> x; x--;

            fill(mrk, mrk + n, 0);

            for (int tp = 0; tp < 3; tp++)
            for (int i = loc[tp][x]; i < n; i++)
                mrk[a[tp][i]] = 1;

            bool was = 1;

            while (was) {
                was = 0;

                for (int tp = 0; tp < 3; tp++)
                for (int i = 0, cur = 0; i < n; i++){
                    assert(a[tp][i] == a[tp][loc[tp][a[tp][i]]]);
                    cur |= mrk[a[tp][i]];

                    if (cur) {
                        if (!mrk[a[tp][i]])
                            was = 1;

                        mrk[a[tp][i]] = 1;
                    }
                }
            }

            bool ok = 1;

            for (int i = 0; i < n && ok; i++)
                if (!mrk[i])
                    ok = 0;

            cout << (ok ? "DA\n" : "NE\n");
        } else {
            int x, y; cin >> tp >> x >> y;
            tp--; x--; y--;

            swap(loc[tp][x], loc[tp][y]);
            swap(a[tp][loc[tp][x]], a[tp][loc[tp][y]]);
        }
    }

    return 0;
}

• Subtask 1: 7 / 7
• Subtask 2: 11 / 11
• Subtask 3: 0 / 12
• Subtask 4: 0 / 21
• Subtask 5: 0 / 49