Submission #101540

# Submission time Handle Problem Language Result Execution time Memory
101540 2019-03-19T03:51:45 Z ShaneOng Cake (CEOI14_cake) C++14
0 / 100
882 ms 26468 KB
#include<bits/stdc++.h>
using namespace std;
typedef pair<int,int> ii;
int n,st,q,arr[250009],flag;
struct node{
    int s,e,m,v=0;
    node *l,*r;
    node(int a,int b){
        s=a,e=b,m=(s+e)/2;
        if(s!=e){
            l=new node(s,m);
            r=new node(m+1,e);
            v=max(l->v,r->v);
        }else{
            v=arr[s];
        }

    }
    void up(int a,int b){
        if(s==e&&s==a){
            v=b;
            return;
        }
        if(a<=m)
            l->up(a,b);
        else
            r->up(a,b);

        v=max(l->v,r->v);
    }
    int qu(int a,int b){
        if(s==a&&b==e){
            return v;
        }
        if(b<=m)
            return l->qu(a,b);
        if(a>m)
            return r->qu(a,b);
        return max(l->qu(a,m),r->qu(m+1,e));
    }
    int bs1(int a){
        if(s==e)
            return s+(v<a);
        if(a>l->v)
            return r->bs1(a);
        return l->bs1(a);
    }
    int bs2(int a){
        if(s==e)
            return s-(v<a);
        if(a>r->v)
            return l->bs2(a);
        return r->bs2(a);
    }
}*root[2];
int main(){
    scanf("%d%d",&n,&st);
    priority_queue<ii,vector<ii>,greater<ii> > pq[2];
    for(int x=0;x<n;x++){
        scanf("%d",&arr[x]);
        if(arr[x]>n-10)
            pq[flag].push(ii(arr[x],x));
    }
    int ctr=n;
    if(st>1)
        root[0]=new node(0,st-2);
    if(st<n)
        root[1]=new node(st,n-1);

    scanf("%d",&q);
    for(int x=0,b,c;x<q;x++){
        char a;
        scanf(" %c",&a);

        if(a=='E'){
            scanf("%d%d",&b,&c);

            while(!pq[flag].empty()){
                ii temp=pq[flag].top();
                pq[flag].pop();
                if(temp.second==b-1)
                    continue;
                if(temp.first>ctr-c+1){
                    temp.first++;
                    if(temp.second+1>st){
                        root[1]->up(temp.second,temp.first);
                    }
                    if(temp.second+1<st)
                        root[0]->up(temp.second,temp.first);
                }
                pq[1-flag].push(temp);
            }
            if(b>st)
                root[1]->up(b-1,ctr-c+2);
            if(b<st)
                root[0]->up(b-1,ctr-c+2);
            pq[1-flag].push(ii(ctr-c+2,b-1));

            flag=1-flag;
            while((int)pq[flag].size()>10)
                pq[flag].pop();
            ctr++;
            assert((int)pq[flag].size()==min(10,n));
        }else{
            scanf("%d",&b);
            if(b!=st){

                if(b>st){
                    //printf("%d,%d\n",root[1]->qu(st,b-1),root[0]->bs2(root[1]->qu(st,b-1)));
                    int temp=-1;
                    if(st!=1)
                        temp=(root[0]->bs2(root[1]->qu(st,b-1)));
                    printf("%d\n",((b-1)-temp-1));
                }
                if(b<st){
                    //printf("%d,%d\n",root[0]->qu(b-1,st-2),root[1]->bs1(root[0]->qu(b-1,st-2)));
                    int temp=n;
                    if(st!=n)
                        temp=root[1]->bs1(root[0]->qu(b-1,st-2));
                    printf("%d\n",(temp-(b-1)-1));
                }
            }else
                printf("0\n");
        }
    }


}

Compilation message

cake.cpp: In function 'int main()':
cake.cpp:57:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d%d",&n,&st);
     ~~~~~^~~~~~~~~~~~~~~
cake.cpp:60:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d",&arr[x]);
         ~~~~~^~~~~~~~~~~~~~
cake.cpp:70:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d",&q);
     ~~~~~^~~~~~~~~
cake.cpp:73:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf(" %c",&a);
         ~~~~~^~~~~~~~~~
cake.cpp:76:18: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
             scanf("%d%d",&b,&c);
             ~~~~~^~~~~~~~~~~~~~
cake.cpp:105:18: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
             scanf("%d",&b);
             ~~~~~^~~~~~~~~
# Verdict Execution time Memory Grader output
1 Correct 2 ms 384 KB Output is correct
2 Incorrect 3 ms 384 KB Output isn't correct
3 Halted 0 ms 0 KB -
# Verdict Execution time Memory Grader output
1 Incorrect 538 ms 2872 KB Output isn't correct
2 Correct 350 ms 2808 KB Output is correct
3 Correct 344 ms 2780 KB Output is correct
4 Correct 285 ms 2712 KB Output is correct
5 Incorrect 452 ms 4360 KB Output isn't correct
6 Correct 432 ms 4300 KB Output is correct
7 Correct 418 ms 4172 KB Output is correct
8 Correct 300 ms 4088 KB Output is correct
# Verdict Execution time Memory Grader output
1 Incorrect 106 ms 11436 KB Output isn't correct
2 Incorrect 104 ms 10748 KB Output isn't correct
3 Incorrect 63 ms 10464 KB Output isn't correct
4 Incorrect 2 ms 256 KB Output isn't correct
5 Incorrect 148 ms 25392 KB Output isn't correct
6 Incorrect 142 ms 25496 KB Output isn't correct
7 Correct 117 ms 25228 KB Output is correct
# Verdict Execution time Memory Grader output
1 Incorrect 46 ms 796 KB Output isn't correct
2 Incorrect 39 ms 880 KB Output isn't correct
3 Incorrect 103 ms 5368 KB Output isn't correct
4 Incorrect 100 ms 5368 KB Output isn't correct
5 Incorrect 129 ms 800 KB Output isn't correct
6 Incorrect 200 ms 7200 KB Output isn't correct
7 Incorrect 217 ms 1756 KB Output isn't correct
8 Incorrect 206 ms 10160 KB Output isn't correct
9 Incorrect 882 ms 26368 KB Output isn't correct
10 Incorrect 347 ms 1640 KB Output isn't correct
11 Incorrect 568 ms 3624 KB Output isn't correct
12 Incorrect 845 ms 21608 KB Output isn't correct
13 Incorrect 619 ms 26468 KB Output isn't correct