oj.uz

Submission #431836

# Submission time Handle Problem Language Result Execution time Memory
431836 2021-06-17T15:56:39 Z tqbfjotld Long Mansion (JOI17_long_mansion) C++14
100 / 100
 1215 ms 143928 KB 
#include <bits/stdc++.h>
using namespace std;

struct node{
    int s,e;
    int minv,maxv;
    node *l,*r;
    node (int _s, int _e){
        s = _s; e = _e;
        if (s!=e){
            l = new node(s,(s+e)/2);
            r = new node((s+e)/2+1,e);
        }
        minv = 999999999;
        maxv = -1;
    }
    void upd(int pos, int val){
        minv = min(minv,val);
        maxv = max(maxv,val);
        if (s==e) return;
        if (pos<=(s+e)/2) l->upd(pos,val);
        else r->upd(pos,val);
    }
    int querymin(int a, int b){
        if (a<=s && e<=b){
            return minv;
        }
        else if (b<=(s+e)/2) return l->querymin(a,b);
        else if (a>(s+e)/2) return r->querymin(a,b);
        else return min(l->querymin(a,b),r->querymin(a,b));
    }
    int querymax(int a, int b){
        if (a<=s && e<=b){
            return maxv;
        }
        else if (b<=(s+e)/2) return l->querymax(a,b);
        else if (a>(s+e)/2) return r->querymax(a,b);
        else return max(l->querymax(a,b),r->querymax(a,b));
    }
    int rightblock(int minpos, int val){
       // printf("call rightblock %d %d on %d %d\n",minpos,val,s,e);
        if (s==e){
            return minv<val?s:999999999;
        }
        if (minpos==s){
            if (l->minv<val) return l->rightblock(minpos,val);
            else return r->rightblock((s+e)/2+1,val);
        }
        if (minpos>(s+e)/2){
            return r->rightblock(minpos,val);
        }
        int t = l->rightblock(minpos,val);
        if (t==999999999){
            return r->rightblock((s+e)/2+1,val);
        }
        else return t;
    }
    int leftblock(int maxpos, int val){
        if (s==e){
            return maxv>val?s:-1;
        }
        if (maxpos==e){
            if (r->maxv>val) return r->leftblock(maxpos,val);
            else return l->leftblock((s+e)/2,val);
        }
        if (maxpos<=(s+e)/2) return l->leftblock(maxpos,val);
        int t = r->leftblock(maxpos,val);
        if (t==-1) return l->leftblock((s+e)/2,val);
        else return t;
    }
}*root1,*root2;

int walltype[500005];
vector<int> keys[500005];

int intervall[500005];
int intervalr[500005];

int walll[500005];
int wallr[500005];

unordered_map<int,int> tempmap;

void rec(int l, int r, vector<int> &thing){
    vector<pair<int,int> > stuff;
    for (int x = l; x<=r; x++){
        stuff.push_back({-(x&-x),x});
    }
    sort(stuff.begin(),stuff.end());
    for (auto x : stuff){
        thing.push_back(x.second);
    }
}

int main(){
    int n;
    scanf("%d",&n);
    root1 = new node(0,n+1);
    root2 = new node(0,n+1);
    for (int x = 1; x<n; x++){
        scanf("%d",&walltype[x]);
    }
    for (int x = 1; x<=n; x++){
        int t;
        scanf("%d",&t);
        for (int y = 0; y<t; y++){
            int a;
            scanf("%d",&a);
            keys[x].push_back(a);
        }
    }
    for (int x = 1; x<n; x++){
        for (auto y : keys[x]){
            tempmap[y] = x;
        }
        if (tempmap.count(walltype[x])) walll[x] = tempmap[walltype[x]];
        else walll[x] = 0;
    }
    tempmap.clear();
    for (int x = n-1; x>0; x--){
        for (auto y : keys[x+1]){
            tempmap[y] = x+1;
        }
        if (tempmap.count(walltype[x])) wallr[x] = tempmap[walltype[x]];
        else wallr[x] = n+1;
    }
    for (int x = 1; x<n; x++){
        root1->upd(x,walll[x]);
        root1->upd(x,wallr[x]);
    }
    vector<int> order;
    rec(1,n,order);
   // printf("wall preproc done\n");
   int num_iter = 0;
    for (int x = 1; x<=n; x++){
        int curl = x;
        int curr = x;
        while (true){
          //  printf("curl,curr = %d %d\n",curl,curr);
          num_iter++;
          assert(num_iter<5*n);
            int newr = root1->rightblock(curr,curl);
            newr = min(newr,n);
           // printf("rightblock %d %d = %d\n",curr,curl,newr);
            int newl = root1->leftblock(curl-1,newr)+1;
            newl = max(newl,1);
            //printf("leftblock %d %d = %d\n",curl-1,curr,newl);
            if (newl==curl&& newr==curr) {
                intervall[x] = curl;
                intervalr[x] = curr;
                break;
            }
            if (newl<curl){
                int te = root2->querymax(newl,x-1);
                if (te>=x){
                    intervalr[x] = te;
                    intervall[x] = root2->querymin(newl,x-1);
                    break;
                }
            }
            if (newr>curr){
                int te = root2->querymin(x+1,newr);
                if (te<=x){
                    intervall[x] = te;
                    intervalr[x] = root2->querymax(x+1,newr);
                    break;
                }
            }
            curl = newl;
            curr = newr;
        }
        root2->upd(x,intervalr[x]);
        root2->upd(x,intervall[x]);
      //  printf("interval[%d] = %d %d\n",x,intervall[x],intervalr[x]);
    }
    int q;
    scanf("%d",&q);
    for (int x = 0; x<q; x++){
        int a,b;
        scanf("%d%d",&a,&b);
        if (b<=intervalr[a] && b>=intervall[a]){
            printf("YES\n");
        }
        else{
            printf("NO\n");
        }
    }
}

Compilation message

long_mansion.cpp: In function 'int main()':
long_mansion.cpp:97:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   97 |     scanf("%d",&n);
      |     ~~~~~^~~~~~~~~
long_mansion.cpp:101:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
  101 |         scanf("%d",&walltype[x]);
      |         ~~~~~^~~~~~~~~~~~~~~~~~~
long_mansion.cpp:105:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
  105 |         scanf("%d",&t);
      |         ~~~~~^~~~~~~~~
long_mansion.cpp:108:18: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
  108 |             scanf("%d",&a);
      |             ~~~~~^~~~~~~~~
long_mansion.cpp:177:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
  177 |     scanf("%d",&q);
      |     ~~~~~^~~~~~~~~
long_mansion.cpp:180:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
  180 |         scanf("%d%d",&a,&b);
      |         ~~~~~^~~~~~~~~~~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 12620 KB Output is correct
2 Correct 14 ms 12876 KB Output is correct
3 Correct 18 ms 13304 KB Output is correct
4 Correct 13 ms 12572 KB Output is correct
5 Correct 15 ms 12620 KB Output is correct
6 Correct 14 ms 12700 KB Output is correct
7 Correct 12 ms 12620 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 12620 KB Output is correct
2 Correct 14 ms 12876 KB Output is correct
3 Correct 18 ms 13304 KB Output is correct
4 Correct 13 ms 12572 KB Output is correct
5 Correct 15 ms 12620 KB Output is correct
6 Correct 14 ms 12700 KB Output is correct
7 Correct 12 ms 12620 KB Output is correct
8 Correct 153 ms 18116 KB Output is correct
9 Correct 143 ms 18168 KB Output is correct
10 Correct 164 ms 18780 KB Output is correct
11 Correct 150 ms 19536 KB Output is correct
12 Correct 168 ms 17556 KB Output is correct
13 Correct 137 ms 18396 KB Output is correct
14 Correct 138 ms 18416 KB Output is correct
15 Correct 139 ms 18360 KB Output is correct
16 Correct 137 ms 18116 KB Output is correct
17 Correct 161 ms 18324 KB Output is correct
18 Correct 138 ms 18416 KB Output is correct
19 Correct 143 ms 18472 KB Output is correct
20 Correct 135 ms 18380 KB Output is correct
21 Correct 135 ms 18128 KB Output is correct
22 Correct 142 ms 18356 KB Output is correct
23 Correct 142 ms 18168 KB Output is correct
24 Correct 138 ms 18256 KB Output is correct
25 Correct 168 ms 18216 KB Output is correct
26 Correct 150 ms 18240 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 392 ms 40672 KB Output is correct
2 Correct 402 ms 39144 KB Output is correct
3 Correct 390 ms 44544 KB Output is correct
4 Correct 374 ms 45716 KB Output is correct
5 Correct 443 ms 45724 KB Output is correct
6 Correct 346 ms 44868 KB Output is correct
7 Correct 409 ms 44636 KB Output is correct
8 Correct 410 ms 44596 KB Output is correct
9 Correct 389 ms 44592 KB Output is correct
10 Correct 407 ms 44680 KB Output is correct
11 Correct 407 ms 44696 KB Output is correct

Subtask #4
75.0 / 75.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 12620 KB Output is correct
2 Correct 14 ms 12876 KB Output is correct
3 Correct 18 ms 13304 KB Output is correct
4 Correct 13 ms 12572 KB Output is correct
5 Correct 15 ms 12620 KB Output is correct
6 Correct 14 ms 12700 KB Output is correct
7 Correct 12 ms 12620 KB Output is correct
8 Correct 153 ms 18116 KB Output is correct
9 Correct 143 ms 18168 KB Output is correct
10 Correct 164 ms 18780 KB Output is correct
11 Correct 150 ms 19536 KB Output is correct
12 Correct 168 ms 17556 KB Output is correct
13 Correct 137 ms 18396 KB Output is correct
14 Correct 138 ms 18416 KB Output is correct
15 Correct 139 ms 18360 KB Output is correct
16 Correct 137 ms 18116 KB Output is correct
17 Correct 161 ms 18324 KB Output is correct
18 Correct 138 ms 18416 KB Output is correct
19 Correct 143 ms 18472 KB Output is correct
20 Correct 135 ms 18380 KB Output is correct
21 Correct 135 ms 18128 KB Output is correct
22 Correct 142 ms 18356 KB Output is correct
23 Correct 142 ms 18168 KB Output is correct
24 Correct 138 ms 18256 KB Output is correct
25 Correct 168 ms 18216 KB Output is correct
26 Correct 150 ms 18240 KB Output is correct
27 Correct 392 ms 40672 KB Output is correct
28 Correct 402 ms 39144 KB Output is correct
29 Correct 390 ms 44544 KB Output is correct
30 Correct 374 ms 45716 KB Output is correct
31 Correct 443 ms 45724 KB Output is correct
32 Correct 346 ms 44868 KB Output is correct
33 Correct 409 ms 44636 KB Output is correct
34 Correct 410 ms 44596 KB Output is correct
35 Correct 389 ms 44592 KB Output is correct
36 Correct 407 ms 44680 KB Output is correct
37 Correct 407 ms 44696 KB Output is correct
38 Correct 802 ms 118400 KB Output is correct
39 Correct 817 ms 142276 KB Output is correct
40 Correct 608 ms 93888 KB Output is correct
41 Correct 1215 ms 143928 KB Output is correct
42 Correct 339 ms 47116 KB Output is correct
43 Correct 330 ms 45888 KB Output is correct
44 Correct 585 ms 72972 KB Output is correct
45 Correct 558 ms 73228 KB Output is correct
46 Correct 575 ms 73556 KB Output is correct
47 Correct 417 ms 47160 KB Output is correct
48 Correct 360 ms 45580 KB Output is correct
49 Correct 609 ms 70448 KB Output is correct
50 Correct 622 ms 71576 KB Output is correct
51 Correct 692 ms 73876 KB Output is correct
52 Correct 530 ms 78044 KB Output is correct
53 Correct 761 ms 104352 KB Output is correct
54 Correct 879 ms 135612 KB Output is correct
55 Correct 719 ms 104968 KB Output is correct