oj.uz

Submission #264077

# Submission time Handle Problem Language Result Execution time Memory
264077 2020-08-14T05:00:15 Z anonymous Game (IOI13_game) C++14
100 / 100
 8000 ms 43364 KB 
#include <iostream>
#include <utility>
#include "game.h"
#define LL long long
#define MAXN 22005
using namespace std;
LL gcd(LL X, LL Y) {
    LL tmp;
    while (X != Y && Y != 0) {
        tmp = X;
        X = Y;
        Y = tmp % Y;
    }
    return X;
}
 
//begin treap
struct Node {
    LL GCD, val; //gcd of subtree
    int c, pri, l, r; //column, priority, children
};
 
class TreapForest {
public:
    Node trp[MAXN * 125];
    int ptr = 1;
    void pushup(int t) {
        trp[t].GCD = gcd(gcd(trp[trp[t].l].GCD, trp[trp[t].r].GCD), trp[t].val);
    }
 
    int addnode(LL v, int c) { //can also be used to make new treap in forest
        trp[ptr].val = trp[ptr].GCD = v;
        trp[ptr].pri = rand();
        trp[ptr].c = c;
        return(ptr++); //return node index
    }
 
    void Split(int t, int &l, int &r, int val) {
        //split subtree t so c <= val to l, c > val to r
        if (!t) {
            l = r = 0;
            return;
        } else if (trp[t].c > val) {
            Split(trp[t].l, l, trp[t].l, val);
            r = t;
        } else {
            Split(trp[t].r, trp[t].r, r, val);
            l = t;
        }
        pushup(t);
    }
 
    void Merge(int &t, int l, int r) {
        //maxC(l) <= maxC(r)
        //combine subtrees l, r into pointer t
        if (!l || !r) {
            t = max(l, r);
            return;
        } else if (trp[l].pri < trp[r].pri) { //bigger pri on top
            Merge(trp[r].l, l, trp[r].l);
            t = r;
        } else {
            Merge(trp[l].r, trp[l].r, r);
            t = l;
        }
        pushup(t);
    }
 
    int Insert(int rt, LL val, int c) {
        int NewNode = addnode(val, c); //assume rt does not already have key c
        int l, r;
        Split(rt, l, r, c);
        Merge(l, l, NewNode);
        Merge(r, l, r);
        return(r); //new root
    }
 
    int Del(int rt, int c) { //Delete if exists
        int l, r, trash;
        Split(rt, l, r, c);
        Split(l, l, trash, c-1);
        Merge(r, l, r);
        return(r);
    }
 
    pair <LL,int> Ask(int rt, int lo, int hi) { //range query
        int l, mid, r;
        LL res;
        Split(rt, l, mid, lo-1);
        Split(mid, mid, r, hi);
        res = trp[mid].GCD;
        Merge(mid, mid, r);
        Merge(l, l, mid);
        return(pair <LL,int> {res, l});
    }
} Treap;
 
//end treap begin segtree
 
class LazyCreate {
    int ST[MAXN * 125]; //store treap root, order by rows
    int L[MAXN * 125], R[MAXN * 125], ptr = 2;
 
public:
    void addnode(int par) {
        L[par] = ptr++;
        R[par] = ptr++;
    }
 
    void modify(int cur, LL val, int c) {
        if (!ST[cur]) {
            ST[cur] = Treap.addnode(val, c);
        } else {
            ST[cur] = Treap.Del(ST[cur], c);
            ST[cur] = Treap.Insert(ST[cur], val, c);
        }
    }
 
    LL upd(int r, int c, LL val, int Rl, int Rr, int cur) {
        if (r < Rl || r > Rr) {
            pair <LL,int> ret = Treap.Ask(ST[cur],c,c);
            ST[cur] = ret.second;
            return(ret.first);
        } else if (Rl == Rr) {
            modify(cur, val, c);
            return(val);
        } else {
            if (!L[cur]) {addnode(cur);}
            int mid = (Rl + Rr) >> 1;
            LL a = upd(r, c, val, Rl, mid, L[cur]);
            LL b = gcd(a, upd(r, c, val, mid+1, Rr, R[cur]));
            modify(cur, b, c);
            return(b);
        }
    }
 
    LL ask(int Lr, int Hr, int Lc, int Hc, int Rl, int Rr, int cur) {
        if (Hr < Rl || Lr > Rr || !cur) {return(0);}
        else if (Lr <= Rl && Hr >= Rr) {
            pair <LL,int> ret = Treap.Ask(ST[cur],Lc, Hc);
            ST[cur] = ret.second;
            return(ret.first);
        } else {
            int mid = (Rl + Rr) >> 1;
            return(gcd( ask(Lr, Hr, Lc, Hc, Rl, mid, L[cur]),
                        ask(Lr, Hr, Lc, Hc, mid+1, Rr, R[cur])));
        }
    }
} ST;
 
int R,C;
void init(int r, int c) {
    R = r, C = c;
}
 
void update(int P, int Q, long long K) {
    ST.upd(P,Q,K, 0, R-1, 1);
}
 
long long calculate(int P, int Q, int U, int V) {
    return(ST.ask(P,U,Q,V,0, R-1, 1));
}

Compilation message

grader.c: In function 'int main()':
grader.c:18:6: warning: variable 'res' set but not used [-Wunused-but-set-variable]
   18 |  int res;
      |      ^~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 2 ms 384 KB Output is correct
3 Correct 2 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 1 ms 384 KB Output is correct
7 Correct 1 ms 384 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 1 ms 384 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Correct 1 ms 384 KB Output is correct
12 Correct 1 ms 384 KB Output is correct

Subtask #2
27.0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 1 ms 384 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 1156 ms 10232 KB Output is correct
5 Correct 601 ms 10060 KB Output is correct
6 Correct 1522 ms 7672 KB Output is correct
7 Correct 1680 ms 7312 KB Output is correct
8 Correct 1154 ms 7204 KB Output is correct
9 Correct 1636 ms 7252 KB Output is correct
10 Correct 1468 ms 7132 KB Output is correct
11 Correct 1 ms 384 KB Output is correct

Subtask #3
26.0 / 26.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 2 ms 384 KB Output is correct
3 Correct 2 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 2 ms 384 KB Output is correct
7 Correct 1 ms 384 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 2 ms 384 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Correct 1 ms 384 KB Output is correct
12 Correct 1743 ms 12024 KB Output is correct
13 Correct 3839 ms 8580 KB Output is correct
14 Correct 582 ms 9324 KB Output is correct
15 Correct 4265 ms 9580 KB Output is correct
16 Correct 510 ms 9208 KB Output is correct
17 Correct 2342 ms 8456 KB Output is correct
18 Correct 4235 ms 10580 KB Output is correct
19 Correct 3623 ms 10756 KB Output is correct
20 Correct 3438 ms 10084 KB Output is correct
21 Correct 0 ms 384 KB Output is correct

Subtask #4
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 384 KB Output is correct
2 Correct 2 ms 384 KB Output is correct
3 Correct 2 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 1 ms 384 KB Output is correct
7 Correct 1 ms 384 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 1 ms 384 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Correct 1 ms 384 KB Output is correct
12 Correct 1171 ms 10232 KB Output is correct
13 Correct 605 ms 10012 KB Output is correct
14 Correct 1605 ms 7580 KB Output is correct
15 Correct 1832 ms 7344 KB Output is correct
16 Correct 1153 ms 7028 KB Output is correct
17 Correct 1628 ms 7288 KB Output is correct
18 Correct 1424 ms 7116 KB Output is correct
19 Correct 1753 ms 12024 KB Output is correct
20 Correct 3901 ms 8488 KB Output is correct
21 Correct 625 ms 9336 KB Output is correct
22 Correct 4308 ms 9292 KB Output is correct
23 Correct 485 ms 9072 KB Output is correct
24 Correct 2306 ms 8532 KB Output is correct
25 Correct 4019 ms 10616 KB Output is correct
26 Correct 3342 ms 10616 KB Output is correct
27 Correct 3673 ms 10104 KB Output is correct
28 Correct 1399 ms 25068 KB Output is correct
29 Correct 2749 ms 27688 KB Output is correct
30 Correct 5115 ms 19748 KB Output is correct
31 Correct 4747 ms 19600 KB Output is correct
32 Correct 867 ms 19960 KB Output is correct
33 Correct 1221 ms 19960 KB Output is correct
34 Correct 698 ms 21624 KB Output is correct
35 Correct 2670 ms 18428 KB Output is correct
36 Correct 5101 ms 25720 KB Output is correct
37 Correct 4097 ms 25884 KB Output is correct
38 Correct 4112 ms 25224 KB Output is correct
39 Correct 3498 ms 22268 KB Output is correct
40 Correct 1 ms 384 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 384 KB Output is correct
2 Correct 2 ms 384 KB Output is correct
3 Correct 2 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 2 ms 384 KB Output is correct
7 Correct 1 ms 384 KB Output is correct
8 Correct 1 ms 512 KB Output is correct
9 Correct 1 ms 384 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Correct 1 ms 384 KB Output is correct
12 Correct 1152 ms 10288 KB Output is correct
13 Correct 559 ms 10048 KB Output is correct
14 Correct 1526 ms 7528 KB Output is correct
15 Correct 1730 ms 7288 KB Output is correct
16 Correct 1169 ms 7052 KB Output is correct
17 Correct 1724 ms 7448 KB Output is correct
18 Correct 1455 ms 7016 KB Output is correct
19 Correct 1737 ms 12020 KB Output is correct
20 Correct 4116 ms 8440 KB Output is correct
21 Correct 611 ms 9312 KB Output is correct
22 Correct 4424 ms 9400 KB Output is correct
23 Correct 490 ms 9080 KB Output is correct
24 Correct 2445 ms 8480 KB Output is correct
25 Correct 4066 ms 10512 KB Output is correct
26 Correct 3514 ms 10616 KB Output is correct
27 Correct 3559 ms 10148 KB Output is correct
28 Correct 1474 ms 25024 KB Output is correct
29 Correct 2812 ms 27776 KB Output is correct
30 Correct 5075 ms 20016 KB Output is correct
31 Correct 4689 ms 19572 KB Output is correct
32 Correct 861 ms 19868 KB Output is correct
33 Correct 1260 ms 19832 KB Output is correct
34 Correct 711 ms 21500 KB Output is correct
35 Correct 2584 ms 18808 KB Output is correct
36 Correct 5321 ms 25840 KB Output is correct
37 Correct 3984 ms 25860 KB Output is correct
38 Correct 4002 ms 25240 KB Output is correct
39 Correct 2025 ms 41100 KB Output is correct
40 Correct 4424 ms 43364 KB Output is correct
41 Correct 7614 ms 34444 KB Output is correct
42 Correct 6910 ms 33088 KB Output is correct
43 Correct 1429 ms 37692 KB Output is correct
44 Correct 1380 ms 31788 KB Output is correct
45 Correct 3491 ms 22368 KB Output is correct
46 Correct 8000 ms 41868 KB Output is correct
47 Correct 7057 ms 41824 KB Output is correct
48 Correct 6718 ms 41460 KB Output is correct
49 Correct 1 ms 384 KB Output is correct