oj.uz

Submission #431593

# Submission time Handle Problem Language Result Execution time Memory
431593 2021-06-17T13:23:58 Z tqbfjotld Long Mansion (JOI17_long_mansion) C++14
10 / 100
 3000 ms 37560 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(maxpos,val);
        }
        if (maxpos<=(s+e)/2) return l->leftblock(maxpos,val);
        int t = r->leftblock(maxpos,val);
        if (t==-1) return l->leftblock(maxpos,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];

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;
        }
        walll[x] = tempmap[walltype[x]];
    }
    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");
    for (int x : order){
        int curl = x;
        int curr = x;
        while (true){
          //  printf("curl,curr = %d %d\n",curl,curr);
            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:173:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
  173 |     scanf("%d",&q);
      |     ~~~~~^~~~~~~~~
long_mansion.cpp:176:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
  176 |         scanf("%d%d",&a,&b);
      |         ~~~~~^~~~~~~~~~~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 12492 KB Output is correct
2 Correct 23 ms 12856 KB Output is correct
3 Correct 62 ms 13364 KB Output is correct
4 Correct 16 ms 12600 KB Output is correct
5 Correct 27 ms 12576 KB Output is correct
6 Correct 16 ms 12620 KB Output is correct
7 Correct 14 ms 12620 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 12492 KB Output is correct
2 Correct 23 ms 12856 KB Output is correct
3 Correct 62 ms 13364 KB Output is correct
4 Correct 16 ms 12600 KB Output is correct
5 Correct 27 ms 12576 KB Output is correct
6 Correct 16 ms 12620 KB Output is correct
7 Correct 14 ms 12620 KB Output is correct
8 Correct 150 ms 14020 KB Output is correct
9 Correct 147 ms 13984 KB Output is correct
10 Correct 161 ms 14488 KB Output is correct
11 Correct 224 ms 15016 KB Output is correct
12 Correct 136 ms 14080 KB Output is correct
13 Correct 148 ms 14240 KB Output is correct
14 Correct 146 ms 14464 KB Output is correct
15 Correct 143 ms 14308 KB Output is correct
16 Correct 157 ms 14556 KB Output is correct
17 Correct 147 ms 14232 KB Output is correct
18 Correct 146 ms 14240 KB Output is correct
19 Correct 187 ms 14256 KB Output is correct
20 Correct 147 ms 14428 KB Output is correct
21 Correct 155 ms 14468 KB Output is correct
22 Correct 186 ms 14384 KB Output is correct
23 Correct 166 ms 14124 KB Output is correct
24 Correct 149 ms 14192 KB Output is correct
25 Correct 153 ms 14216 KB Output is correct
26 Correct 147 ms 14108 KB Output is correct

Subtask #3
0 / 15.0

# Verdict Execution time Memory Grader output
1 Execution timed out 3018 ms 37560 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #4
0 / 75.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 12492 KB Output is correct
2 Correct 23 ms 12856 KB Output is correct
3 Correct 62 ms 13364 KB Output is correct
4 Correct 16 ms 12600 KB Output is correct
5 Correct 27 ms 12576 KB Output is correct
6 Correct 16 ms 12620 KB Output is correct
7 Correct 14 ms 12620 KB Output is correct
8 Correct 150 ms 14020 KB Output is correct
9 Correct 147 ms 13984 KB Output is correct
10 Correct 161 ms 14488 KB Output is correct
11 Correct 224 ms 15016 KB Output is correct
12 Correct 136 ms 14080 KB Output is correct
13 Correct 148 ms 14240 KB Output is correct
14 Correct 146 ms 14464 KB Output is correct
15 Correct 143 ms 14308 KB Output is correct
16 Correct 157 ms 14556 KB Output is correct
17 Correct 147 ms 14232 KB Output is correct
18 Correct 146 ms 14240 KB Output is correct
19 Correct 187 ms 14256 KB Output is correct
20 Correct 147 ms 14428 KB Output is correct
21 Correct 155 ms 14468 KB Output is correct
22 Correct 186 ms 14384 KB Output is correct
23 Correct 166 ms 14124 KB Output is correct
24 Correct 149 ms 14192 KB Output is correct
25 Correct 153 ms 14216 KB Output is correct
26 Correct 147 ms 14108 KB Output is correct
27 Execution timed out 3018 ms 37560 KB Time limit exceeded
28 Halted 0 ms 0 KB -