Submission #230121

# Submission time Handle Problem Language Result Execution time Memory
230121 2020-05-08T13:50:40 Z nicolaalexandra Cake (CEOI14_cake) C++14
75.8333 / 100
1168 ms 50024 KB
#include <bits/stdc++.h>
#define DIM 250010
#define DIMBUFF 5000000
using namespace std;
struct segment_tree{
    int maxi,poz;
} aint[DIM*4];

int v[DIM];
set <pair<int,int> > s;
vector <pair<int,int> > w;
int n,a,q,poz,sol_poz,val,sol,x,i,pos;
char ch;
char buff[DIMBUFF];

void build (int nod, int st, int dr){
    if (st == dr){
        aint[nod].maxi = v[st];
        aint[nod].poz = st;
        return;
    }
    int mid = (st+dr)>>1;
    build (nod<<1,st,mid);
    build ((nod<<1)|1,mid+1,dr);

    if (aint[nod<<1].maxi > aint[(nod<<1)|1].maxi)
        aint[nod] = aint[nod<<1];
    else aint[nod] = aint[(nod<<1)|1];

}
void update (int nod, int st, int dr, int poz, int val){
    if (st == dr){
        aint[nod].maxi = val;
        return;
    }
    int mid = (st+dr)>>1;
    if (poz <= mid)
        update (nod<<1,st,mid,poz,val);
    else update ((nod<<1)|1,mid+1,dr,poz,val);

    if (aint[nod<<1].maxi > aint[(nod<<1)|1].maxi)
        aint[nod] = aint[nod<<1];
    else aint[nod] = aint[(nod<<1)|1];
}

void query_maxi (int nod, int st, int dr, int x, int y){
    if (x <= st && dr <= y){
        sol = max (sol,aint[nod].maxi);
        return;
    }
    int mid = (st+dr)>>1;
    if (x <= mid)
        query_maxi (nod<<1,st,mid,x,y);
    if (y > mid)
        query_maxi ((nod<<1)|1,mid+1,dr,x,y);
}

int get_val (int nod, int st, int dr, int poz){
    if (st == dr)
        return aint[nod].maxi;
    int mid = (st+dr)>>1;
    if (poz <= mid)
        return get_val (nod<<1,st,mid,poz);
    else return get_val ((nod<<1)|1,mid+1,dr,poz);
}

void query (int nod, int st, int dr, int x, int y, int val){
    if (sol_poz)
        return;
    if (st == dr && aint[nod].maxi > val){
        sol_poz = st;
        return;
    }

    if (x <= st && dr <= y){

        if (aint[nod].maxi > val){ /// inseamna ca trb sa i dau split
            int mid = (st+dr)>>1;
            if (aint[nod<<1].maxi <= val)
                query ((nod<<1)|1,mid+1,dr,x,y,val);
            else query ((nod<<1),st,mid,x,y,val);
        }

        return;
    }
    int mid = (st+dr)>>1;
    if (x <= mid)
        query (nod<<1,st,mid,x,y,val);
    if (y > mid)
        query ((nod<<1)|1,mid+1,dr,x,y,val);
}

void query2 (int nod, int st, int dr, int x, int y, int val){
    if (sol_poz)
        return;
    if (st == dr && aint[nod].maxi > val){
        sol_poz = st;
        return;
    }

    if (x <= st && dr <= y){

        if (aint[nod].maxi > val){
            int mid = (st+dr)>>1;
            if (aint[(nod<<1)|1].maxi > val)
                query2 ((nod<<1)|1,mid+1,dr,x,y,val);
            else query2 (nod<<1,st,mid,x,y,val);
        }

        return;
    }

    int mid = (st+dr)>>1;
    if (y > mid)
        query2 ((nod<<1)|1,mid+1,dr,x,y,val);
    if (x <= mid)
        query2 (nod<<1,st,mid,x,y,val);
}
int get_nr (){
    while (!(buff[pos] >= '0' && buff[pos] <= '9'))
        pos++;
    int nr = 0;
    while (buff[pos] >= '0' && buff[pos] <= '9'){
        nr = nr*10 + buff[pos] - '0';
        pos++;
    }
    return nr;
}
char get_char (){

    while (buff[pos] != 'E' && buff[pos] != 'F')
        pos++;
    char ch = buff[pos];
    pos++;
    return ch;

}
int main (){

    //FILE *fin = fopen ("cake.in","r");
    //FILE *fout = fopen ("cake.out","w");

    FILE *fin = stdin;
    FILE *fout = stdout;


    fread (buff,1,DIMBUFF,fin);

    n = get_nr(), a = get_nr();
    //cin>>n>>a;
    for (i=1;i<=n;i++){
        //cin>>v[i];
        v[i] = get_nr();
        s.insert(make_pair(v[i],i));
    }

    build (1,1,n);

    //cin>>q;
    q = get_nr();
    for (;q--;){
        //cin>>ch;
        ch = get_char();
        if (ch == 'E'){
           // cin>>poz>>x;
            poz = get_nr(), x = get_nr();
            /// mai intai verific daca e cumva deja a x - a valoare
            int pas = 0, ok = 0;
            for (set<pair<int,int> > :: reverse_iterator it = s.rbegin();it != s.rend();it++){
                pas++;
                if (pas == x){
                    if (it->second == poz)
                        ok = 1;
                    break;
                }
            }
            if (ok)
                continue;

            /// iau cele mai mari x-1 valori si pe poz o sa pun a x-1 a valoare
            pas = 0;
            int val = get_val (1,1,n,poz), aux = 0;
            w.clear();
            while (1){
                set <pair<int,int> > :: reverse_iterator it = s.rbegin();
                pas++;

                if (pas == x){
                    aux = it->first;

                    update (1,1,n,poz,aux+1);
                    w.push_back(make_pair(aux+1,poz));
                    s.erase(make_pair(val,poz));

                    break;
                }

                update (1,1,n,it->second,it->first+1);
                w.push_back(make_pair(it->first+1,it->second));
                s.erase(make_pair(it->first,it->second));

            }
            for (auto it : w)
                s.insert(make_pair(it.first,it.second));


           // for (i=1;i<=n;i++)
            //    cout<<get_val(1,1,n,i)<<" ";
           // cout<<"\n";
            continue;
        }

        //cin>>poz;
        poz = get_nr();
        if (poz == a){
            fprintf(fout,"0\n");
            //cout<<"0\n";
            continue;
        }

        val = get_val (1,1,n,poz);
        if (poz < a){ /// e in stanga
            sol = 0;
            query_maxi (1,1,n,poz,a-1);

            sol_poz = 0;
            query (1,1,n,a+1,n,sol);

            if (!sol_poz) /// inseamna ca toate sunt mai mici
                sol_poz = n+1;

            //cout<<sol_poz - poz - 1<<"\n";
            fprintf(fout,"%d\n",sol_poz - poz - 1);

        } else {

            sol = 0;
            query_maxi (1,1,n,a+1,poz);

            sol_poz = 0;
            query2 (1,1,n,1,a-1,sol);

            //cout<<poz - sol_poz - 1<<"\n";
            fprintf(fout,"%d\n",poz - sol_poz - 1);

        }
    }


    return 0;
}

Compilation message

cake.cpp: In function 'int main()':
cake.cpp:147:11: warning: ignoring return value of 'size_t fread(void*, size_t, size_t, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
     fread (buff,1,DIMBUFF,fin);
     ~~~~~~^~~~~~~~~~~~~~~~~~~~
# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 5 ms 384 KB Output is correct
3 Correct 5 ms 384 KB Output is correct
4 Correct 10 ms 512 KB Output is correct
5 Correct 21 ms 1280 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 624 ms 5624 KB Output is correct
2 Correct 266 ms 5504 KB Output is correct
3 Correct 355 ms 5504 KB Output is correct
4 Correct 134 ms 5504 KB Output is correct
5 Correct 685 ms 6856 KB Output is correct
6 Runtime error 537 ms 14736 KB Execution killed with signal 11 (could be triggered by violating memory limits)
7 Correct 408 ms 7032 KB Output is correct
8 Runtime error 201 ms 14072 KB Execution killed with signal 11 (could be triggered by violating memory limits)
# Verdict Execution time Memory Grader output
1 Correct 99 ms 9468 KB Output is correct
2 Correct 69 ms 9336 KB Output is correct
3 Correct 58 ms 9336 KB Output is correct
4 Correct 5 ms 384 KB Output is correct
5 Correct 224 ms 20284 KB Output is correct
6 Correct 217 ms 20216 KB Output is correct
7 Correct 94 ms 20088 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 67 ms 1024 KB Output is correct
2 Correct 44 ms 1272 KB Output is correct
3 Correct 104 ms 4984 KB Output is correct
4 Correct 142 ms 4984 KB Output is correct
5 Correct 178 ms 1952 KB Output is correct
6 Correct 181 ms 6776 KB Output is correct
7 Correct 162 ms 3192 KB Output is correct
8 Correct 251 ms 10048 KB Output is correct
9 Runtime error 1168 ms 50016 KB Execution killed with signal 11 (could be triggered by violating memory limits)
10 Correct 582 ms 5240 KB Output is correct
11 Correct 785 ms 7576 KB Output is correct
12 Runtime error 1153 ms 44412 KB Execution killed with signal 11 (could be triggered by violating memory limits)
13 Runtime error 812 ms 50024 KB Execution killed with signal 11 (could be triggered by violating memory limits)