oj.uz

Submission #556913

# Submission time Handle Problem Language Result Execution time Memory
556913 2022-05-04T10:59:53 Z new_acc Osumnjičeni (COCI21_osumnjiceni) C++14
30 / 110
 80 ms 5776 KB 
#include<bits/stdc++.h>
#define fi first
#define se second
#define pitem item*
using namespace std;
typedef long long ll;
typedef unsigned long long ull;
typedef vector<int> vi;
typedef vector<ll> vl;
const int N=2e5+10;
const int SS=1<<18;
const int INFi=2e9;
const ll INFl=1e13;
const ll mod2=998244353;
const ll mod=1e9+7;
const ll mod3=1000696969;
const ll p=70032301;
const ull p2=913;
const int L=18;
pair<int,int> sorted[N],t[N];
int seg[(SS<<1)+10],lazy[(SS<<1)+10],nxt[N],jump[N][L+1];
void push(int v){
    lazy[(v<<1)]+=lazy[v],lazy[(v<<1)+1]+=lazy[v];
    seg[(v<<1)]+=lazy[v],seg[(v<<1)+1]+=lazy[v];
    lazy[v]=0;
}
void upd(int a,int b,int x,int p=0,int k=SS-1,int v=1){
    if(p>b or k<a) return;
    if(p>=a and k<=b){
        seg[v]+=x,lazy[v]+=x;
        return;
    }
    push(v);
    upd(a,b,x,p,(p+k)>>1,(v<<1)),upd(a,b,x,((p+k)>>1)+1,k,(v<<1)+1);
    seg[v]=max(seg[(v<<1)],seg[(v<<1)+1]);
}
int Query(int a,int b,int p=0,int k=SS-1,int v=1){
    if(p>b or k<a) return 0;
    if(p>=a and k<=b) return seg[v];
    push(v);
    return max(Query(a,b,p,(p+k)>>1,v<<1),Query(a,b,((p+k)>>1)+1,k,(v<<1)+1));
}
void solve(){
    int n;
    cin>>n;
    int curr=0;
    for(int a,b,i=1;i<=n;i++){
        cin>>a>>b;
        sorted[++curr]={a,i},sorted[++curr]={b,-i}; 
    }
    sort(sorted+1,sorted+1+curr);
    int l=0;
    for(int i=1;i<=curr;i++){
        if(sorted[i].fi!=sorted[i-1].fi or i==1) l++;
        if(sorted[i].se>0) t[sorted[i].se].fi=l;
        else t[sorted[i].se*(-1)].se=l;
    }
    curr=0;
    for(int i=1;i<=n;i++){
        curr=max(curr,i);
        while(curr<=n and Query(t[curr].fi,t[curr].se)==0){
            upd(t[curr].fi,t[curr].se,1);
            ++curr;
        }
        nxt[i]=curr;
        upd(t[i].fi,t[i].se,-1);
        jump[i][0]=nxt[i];
    }
    for(int i=0;i<=L;i++) jump[n+1][i]=n+1;
    for(int i=n;i>=1;i--)
        for(int k=1;k<=L;k++) jump[i][k]=jump[jump[i][k-1]][k-1];
    int q;
    cin>>q;
    while(q--){
        int a,b;
        cin>>a>>b;
        int res=1;
        for(int i=L;i>=0;i--)
            if(jump[a][i]<=b) res+=(1<<i),a=jump[a][i];
        cout<<res<<"\n";
    }
}
int main(){
    ios_base::sync_with_stdio(0),cin.tie(0);
    int tt=1;
    while(tt--) solve();
}

Subtask #1
0 / 10.0

# Verdict Execution time Memory Grader output
1 Runtime error 24 ms 5776 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 1248 KB Output is correct
2 Correct 11 ms 1224 KB Output is correct
3 Correct 12 ms 1108 KB Output is correct
4 Correct 11 ms 1236 KB Output is correct
5 Correct 10 ms 1108 KB Output is correct
6 Correct 7 ms 1108 KB Output is correct
7 Correct 7 ms 980 KB Output is correct
8 Correct 8 ms 980 KB Output is correct
9 Correct 7 ms 984 KB Output is correct
10 Correct 7 ms 980 KB Output is correct
11 Correct 7 ms 1160 KB Output is correct
12 Correct 7 ms 1108 KB Output is correct
13 Correct 6 ms 1208 KB Output is correct
14 Correct 7 ms 1236 KB Output is correct
15 Correct 7 ms 1232 KB Output is correct
16 Correct 1 ms 324 KB Output is correct
17 Correct 7 ms 1096 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 1248 KB Output is correct
2 Correct 11 ms 1224 KB Output is correct
3 Correct 12 ms 1108 KB Output is correct
4 Correct 11 ms 1236 KB Output is correct
5 Correct 10 ms 1108 KB Output is correct
6 Correct 7 ms 1108 KB Output is correct
7 Correct 7 ms 980 KB Output is correct
8 Correct 8 ms 980 KB Output is correct
9 Correct 7 ms 984 KB Output is correct
10 Correct 7 ms 980 KB Output is correct
11 Correct 7 ms 1160 KB Output is correct
12 Correct 7 ms 1108 KB Output is correct
13 Correct 6 ms 1208 KB Output is correct
14 Correct 7 ms 1236 KB Output is correct
15 Correct 7 ms 1232 KB Output is correct
16 Correct 1 ms 324 KB Output is correct
17 Correct 7 ms 1096 KB Output is correct
18 Correct 80 ms 3908 KB Output is correct
19 Correct 71 ms 3552 KB Output is correct
20 Correct 77 ms 3932 KB Output is correct
21 Correct 72 ms 3636 KB Output is correct
22 Correct 76 ms 3692 KB Output is correct
23 Correct 64 ms 3404 KB Output is correct
24 Correct 70 ms 3560 KB Output is correct
25 Correct 70 ms 3664 KB Output is correct
26 Correct 66 ms 3532 KB Output is correct
27 Correct 68 ms 3492 KB Output is correct
28 Correct 47 ms 3148 KB Output is correct
29 Correct 51 ms 3252 KB Output is correct
30 Correct 50 ms 3324 KB Output is correct
31 Correct 52 ms 3240 KB Output is correct
32 Correct 53 ms 3276 KB Output is correct
33 Correct 1 ms 340 KB Output is correct
34 Correct 57 ms 3312 KB Output is correct

Subtask #4
0 / 20.0

# Verdict Execution time Memory Grader output
1 Runtime error 22 ms 5704 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #5
0 / 50.0

# Verdict Execution time Memory Grader output
1 Runtime error 24 ms 5776 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -