oj.uz

Submission #164010

# Submission time Handle Problem Language Result Execution time Memory
164010 2019-11-16T20:18:04 Z georgerapeanu Bitaro, who Leaps through Time (JOI19_timeleap) C++11
0 / 100
 889 ms 524292 KB 
#include <cstdio>
#include <algorithm>
#include <vector>
#include <cstdlib>
#include <cstring>

using namespace std;

const int NMAX = 3e5;

struct node_t{
    int breaking_point;
    int l,r;
    int real_l,real_r;
    long long cst;

    node_t operator + (const node_t &other)const{
        node_t ans;
        ans.cst = this->cst + other.cst;
        ans.real_l = max(this->real_l,other.real_l);
        ans.real_r = min(this->real_r,other.real_r);
        if(ans.real_l <= ans.real_r){
            ans.breaking_point = ans.real_r;
            ans.cst = 0;
            ans.l = ans.real_l;
            ans.r = ans.real_r;
        }
        else{
            if(this->real_l <= this->real_r){
                if(other.real_l <= other.real_r){
                    if(this->r < other.l){
                        ans.cst += 0;
                        ans.l = ans.r = other.l;
                        ans.breaking_point = this->r;
                    }
                    else{
                        ans.cst += this->l - other.r;
                        ans.l = ans.r = other.r;
                        ans.breaking_point = this->l;
                    }
                }
                else{
                    ans.l = other.l;ans.r = other.r;
                    if(other.breaking_point > this-> r){
                        ans.breaking_point = this->breaking_point;
                        ans.cst += 0;
                    }
                    else if(other.breaking_point >= this->l){
                        ans.breaking_point = other.breaking_point;
                        ans.cst += 0;
                    }
                    else{
                        ans.breaking_point = this->l;
                        ans.cst += this->l - other.breaking_point;
                    }
                }
            }
            else{
                if(this->l >= other.breaking_point){
                    ans.cst += this->l - other.breaking_point;
                }
                ans.breaking_point = this->breaking_point;
                if(other.r < this->l){
                    ans.l = ans.r = other.r;
                }
                else if(other.l <= this->l){
                    ans.l = ans.r = this->l;
                }
                else{
                    ans.l = ans.r = other.l;
                }
            }
        }
        return ans;
    }
};

class SegTree{
public:

    int n;
    node_t aint[NMAX * 4 + 5];

    void build(int nod,int st,int dr,pair<int,int> v[]){
        if(st == dr){
            aint[nod].l = aint[nod].real_l = v[st].first;
            aint[nod].r = aint[nod].real_r = v[st].second;
            aint[nod].breaking_point = aint[nod].real_r;
            aint[nod].cst = 0;
            return ;
        }

        int mid = (st + dr) / 2;

        build(nod * 2,st,mid,v);
        build(nod * 2 + 1,mid + 1,dr,v);

        aint[nod] = aint[nod * 2] + aint[nod * 2 + 1];
    }

    void update(int nod,int st,int dr,int pos,pair<int,int> val){
        if(pos < st || pos > dr){
            return ;
        }
        if(st == dr){
            aint[nod].l = aint[nod].real_l = val.first;
            aint[nod].r = aint[nod].real_r = val.second;
            aint[nod].breaking_point = aint[nod].real_r;
            aint[nod].cst = 0;
            return ;
        }

        int mid = (st + dr) / 2;

        update(nod * 2,st,mid,pos,val);
        update(nod * 2 + 1,mid + 1,dr,pos,val);

        aint[nod] = aint[nod * 2] + aint[nod * 2 + 1];
    }

    SegTree(int n,pair<int,int> v[]){
        this->n = n;
        build(1,1,n,v);
    }

    SegTree(){
        this->n = 0;
        memset(this->aint,0,sizeof(this->aint));
    }

    node_t query(int nod,int st,int dr,int l,int r){
        if(l <= st && dr <= r){
            return aint[nod];
        }

        int mid = (st + dr) / 2;

        if(l > mid){
            return query(nod * 2 + 1,mid + 1,dr,l,r);
        }
        else if(r <= mid){
            return query(nod * 2,st,mid,l,r);
        }
        else{
            return query(nod * 2,st,mid,l,r) + query(nod * 2 + 1,mid + 1,dr,l,r);
        }
    }
};

int n,q;
pair<int,int> fst[NMAX + 5];
pair<int,int> snd[NMAX + 5];

SegTree norm;
SegTree rev;

int main(){

    scanf("%d %d",&n,&q);

    for(int i = 1;i < n;i++){
        scanf("%d %d",&fst[i].first,&fst[i].second);
        fst[i].second--;
        snd[n - i] = fst[i];
    }

    for(int i = 1;i < n;i++){
        fst[i].first -= i;
        fst[i].second -= i;
        snd[i].first -= i;
        snd[i].second -= i;
    }

    norm.n = n - 1;norm.build(1,1,n - 1,fst);
    rev.n = n - 1;rev.build(1,1,n - 1,snd);

    while(q--){
        int t;
        scanf("%d",&t);

        if(t == 1){
            int p,l,r;
            scanf("%d %d %d",&p,&l,&r);
            r--;
            norm.update(1,1,n - 1,p,{l - p,r - p});
            rev.update(1,1,n - 1,n - p,{l - (n - p),r - (n - p)});
        }
        else{
            int a,b,c,d;
            scanf("%d %d %d %d",&a,&b,&c,&d);
            if(a == c){
                printf("%lld\n",max(0LL,(long long)b - d));
            }
            else if(a < c){
                b -= a;
                d -= c;
                node_t tmp = norm.query(1,1,n - 1,a,c - 1);
                int ext_wh = -1;

                if(b > tmp.r){
                    ext_wh = tmp.r;
                }
                else if(b >= tmp.l){
                    ext_wh = b;
                }
                else{
                    ext_wh = tmp.l;
                }

                long long ans = tmp.cst + max(0,b - tmp.breaking_point) + max(0,ext_wh - d);
                
                printf("%lld\n",ans);
            }
            else{
                a = n + 1 - a;
                c = n + 1 - c;
                b -= a;
                d -= c;
                node_t tmp = rev.query(1,1,n - 1,a,c - 1);
                int ext_wh = -1;

                if(b > tmp.r){
                    ext_wh = tmp.r;
                }
                else if(b >= tmp.l){
                    ext_wh = b;
                }
                else{
                    ext_wh = tmp.l;
                }
                long long ans = tmp.cst + max(0,b - tmp.breaking_point) + max(0,ext_wh - d);
                
                printf("%lld\n",ans);
            }
        }
    }

    return 0;
}

Compilation message

timeleap.cpp: In function 'int main()':
timeleap.cpp:159:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d %d",&n,&q);
     ~~~~~^~~~~~~~~~~~~~~
timeleap.cpp:162:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d %d",&fst[i].first,&fst[i].second);
         ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
timeleap.cpp:179:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d",&t);
         ~~~~~^~~~~~~~~
timeleap.cpp:183:18: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
             scanf("%d %d %d",&p,&l,&r);
             ~~~~~^~~~~~~~~~~~~~~~~~~~~
timeleap.cpp:190:18: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
             scanf("%d %d %d %d",&a,&b,&c,&d);
             ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 66 ms 75556 KB Output is correct
2 Correct 65 ms 75400 KB Output is correct
3 Correct 64 ms 75384 KB Output is correct
4 Correct 64 ms 75440 KB Output is correct
5 Correct 65 ms 75456 KB Output is correct
6 Correct 65 ms 75512 KB Output is correct
7 Correct 67 ms 75400 KB Output is correct
8 Correct 65 ms 75512 KB Output is correct
9 Correct 65 ms 75388 KB Output is correct
10 Correct 66 ms 75388 KB Output is correct
11 Correct 67 ms 75448 KB Output is correct
12 Correct 67 ms 75404 KB Output is correct
13 Correct 66 ms 75512 KB Output is correct
14 Correct 72 ms 75512 KB Output is correct
15 Correct 67 ms 75568 KB Output is correct
16 Correct 67 ms 75640 KB Output is correct
17 Correct 66 ms 75512 KB Output is correct
18 Correct 67 ms 75512 KB Output is correct
19 Correct 66 ms 75444 KB Output is correct
20 Correct 66 ms 75512 KB Output is correct
21 Correct 66 ms 75540 KB Output is correct
22 Correct 67 ms 75476 KB Output is correct
23 Correct 67 ms 75452 KB Output is correct
24 Correct 67 ms 75512 KB Output is correct
25 Correct 66 ms 75512 KB Output is correct
26 Correct 66 ms 75512 KB Output is correct
27 Correct 67 ms 75512 KB Output is correct
28 Correct 66 ms 75512 KB Output is correct
29 Correct 66 ms 75484 KB Output is correct
30 Correct 66 ms 75512 KB Output is correct
31 Correct 67 ms 75552 KB Output is correct
32 Correct 66 ms 75512 KB Output is correct
33 Correct 67 ms 75476 KB Output is correct
34 Correct 67 ms 75512 KB Output is correct
35 Correct 66 ms 75416 KB Output is correct
36 Correct 68 ms 75512 KB Output is correct
37 Correct 75 ms 75512 KB Output is correct
38 Correct 66 ms 75512 KB Output is correct
39 Correct 67 ms 75512 KB Output is correct
40 Correct 67 ms 75512 KB Output is correct
41 Runtime error 424 ms 524292 KB Execution killed with signal 9 (could be triggered by violating memory limits)

Subtask #2
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 779 ms 83988 KB Output is correct
2 Correct 769 ms 84984 KB Output is correct
3 Correct 764 ms 85124 KB Output is correct
4 Correct 782 ms 84856 KB Output is correct
5 Correct 783 ms 85240 KB Output is correct
6 Correct 816 ms 85368 KB Output is correct
7 Correct 763 ms 85352 KB Output is correct
8 Correct 815 ms 85624 KB Output is correct
9 Correct 757 ms 85168 KB Output is correct
10 Correct 889 ms 85368 KB Output is correct
11 Correct 807 ms 85356 KB Output is correct
12 Correct 794 ms 85836 KB Output is correct
13 Correct 796 ms 85648 KB Output is correct
14 Runtime error 427 ms 524292 KB Execution killed with signal 9 (could be triggered by violating memory limits)

Subtask #3
0 / 66.0

# Verdict Execution time Memory Grader output
1 Correct 66 ms 75556 KB Output is correct
2 Correct 65 ms 75400 KB Output is correct
3 Correct 64 ms 75384 KB Output is correct
4 Correct 64 ms 75440 KB Output is correct
5 Correct 65 ms 75456 KB Output is correct
6 Correct 65 ms 75512 KB Output is correct
7 Correct 67 ms 75400 KB Output is correct
8 Correct 65 ms 75512 KB Output is correct
9 Correct 65 ms 75388 KB Output is correct
10 Correct 66 ms 75388 KB Output is correct
11 Correct 67 ms 75448 KB Output is correct
12 Correct 67 ms 75404 KB Output is correct
13 Correct 66 ms 75512 KB Output is correct
14 Correct 72 ms 75512 KB Output is correct
15 Correct 67 ms 75568 KB Output is correct
16 Correct 67 ms 75640 KB Output is correct
17 Correct 66 ms 75512 KB Output is correct
18 Correct 67 ms 75512 KB Output is correct
19 Correct 66 ms 75444 KB Output is correct
20 Correct 66 ms 75512 KB Output is correct
21 Correct 66 ms 75540 KB Output is correct
22 Correct 67 ms 75476 KB Output is correct
23 Correct 67 ms 75452 KB Output is correct
24 Correct 67 ms 75512 KB Output is correct
25 Correct 66 ms 75512 KB Output is correct
26 Correct 66 ms 75512 KB Output is correct
27 Correct 67 ms 75512 KB Output is correct
28 Correct 66 ms 75512 KB Output is correct
29 Correct 66 ms 75484 KB Output is correct
30 Correct 66 ms 75512 KB Output is correct
31 Correct 67 ms 75552 KB Output is correct
32 Correct 66 ms 75512 KB Output is correct
33 Correct 67 ms 75476 KB Output is correct
34 Correct 67 ms 75512 KB Output is correct
35 Correct 66 ms 75416 KB Output is correct
36 Correct 68 ms 75512 KB Output is correct
37 Correct 75 ms 75512 KB Output is correct
38 Correct 66 ms 75512 KB Output is correct
39 Correct 67 ms 75512 KB Output is correct
40 Correct 67 ms 75512 KB Output is correct
41 Runtime error 424 ms 524292 KB Execution killed with signal 9 (could be triggered by violating memory limits)