Submission #288208

#	Time	Username	Problem	Language	Result	Execution time	Memory
288208		ToMmyDong	Last supper (IOI12_supper)	C++11	100 / 100	331 ms	22240 KiB

advisor

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<int,int> pii;
#define ALL(i) i.begin(), i.end()
#define SZ(i) int(i.size())
#define X first
#define Y second
#ifdef tmd
#define debug(...) fprintf(stderr,"#%d-(%s)=",__LINE__,#__VA_ARGS__);_do(__VA_ARGS__);
template<typename T> void _do(T &&x){cerr<<x<<endl;}
template<typename T, typename ...S> void _do(T &&x, S &&...y) {cerr<<x<<",";_do(y...);}
template<typename IT> ostream& __printRng (ostream& os, IT bg, IT ed) {
    for (IT it=bg;it!=ed;it++) {
        if (it == bg) os << "{" << *it;
        else os << "," << *it;
    }
    return os << "}";
}
template<typename T> ostream& operator << (ostream& os, const vector<T> &vec) {
    return __printRng(os, ALL(vec));
}
template<typename T, typename S> ostream& operator << (ostream& os, const pair<T,S> &pa) {
    return os << "{" << pa.X << "," << pa.Y << "}";
}
#else
#define debug(...)
#endif
#include "advisor.h"


const int BB = 25001;
void ComputeAdvice(int *c, int n, int k, int m) {

    vector<int> nxt(n);
    vector<int> lst(n, n);
    for (int i=n-1; i>=0; i--) {
        nxt[i] = lst[c[i]];
        lst[c[i]] = i;
    }
    vector<int> CC;
    for (int i=0; i<n; i++) {
        CC.emplace_back(c[i]);
    }
    debug(CC);

    set<pii> pq;
    set<int> st;
    map<int,int> pos;

    vector<int> in(n);
    vector<int> del(n+k);

    for (int i=0; i<k; i++) {
        pos[i] = i;
        pq.emplace(pii(lst[i], i));
        st.insert(i);
        debug(lst[i], i);
        in[i] = i;
    }
    vector<int> pl(k);
    iota(pl.begin(), pl.end(), 0);
    int prv = -1;

    for (int i=0; i<n; i++) {
        int req = c[i];
        assert(c[i] == req);
        bool flag = true;
        if (!st.count(req)) {
            pii cur = *prev(pq.end());
            pq.erase(prev(pq.end()));
            debug(cur.Y);
            del[in[cur.Y]] = true;

            pl[pos[cur.Y]] = req;
            pos[req] = pos[cur.Y];

            st.erase(cur.Y);
            st.insert(req);
            pq.emplace(nxt[i], req);
            in[req] = i+k;
        } else {
            flag = false;
            pq.erase({i, req});
            pq.emplace(nxt[i], req);
            in[req] = i+k;
        }
    }

    for (int i=0; i<k+n; i++) {
        WriteAdvice(del[i]);
    }
    debug("done");
}

assistant

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<int,int> pii;
#define ALL(i) i.begin(), i.end()
#define SZ(i) int(i.size())
#define X first
#define Y second
#ifdef tmd
#define debug(...) fprintf(stderr,"#%d-(%s)=",__LINE__,#__VA_ARGS__);_do(__VA_ARGS__);
template<typename T> void _do(T &&x){cerr<<x<<endl;}
template<typename T, typename ...S> void _do(T &&x, S &&...y) {cerr<<x<<",";_do(y...);}
template<typename IT> ostream& __printRng (ostream& os, IT bg, IT ed) {
    for (IT it=bg;it!=ed;it++) {
        if (it == bg) os << "{" << *it;
        else os << "," << *it;
    }
    return os << "}";
}
template<typename T> ostream& operator << (ostream& os, const vector<T> &vec) {
    return __printRng(os, ALL(vec));
}
template<typename T, typename S> ostream& operator << (ostream& os, const pair<T,S> &pa) {
    return os << "{" << pa.X << "," << pa.Y << "}";
}
#else
#define debug(...)
#endif

#include "assistant.h"

const int BB = 25001;
void Assist(unsigned char *a, int n, int k, int r) {


    int prv = -1;
    set<int> dl;
    set<int> pl;
    for (int i=0; i<k; i++) {
        if (a[i]) dl.insert(i);
        pl.insert(i);
    }

    vector<int> he;
    for (int i=0; i<n+k; i++) {
        he.emplace_back(a[i]);
    }
    debug(he);

    for (int i=0, ptr=0; i<n; i++) {
        int req = GetRequest();
        debug(i, req);
        if (pl.count(req)) {
            if (a[i+k]) dl.insert(req);
            continue;
        } else {
            assert(dl.size());
            int tp = *dl.begin();
            dl.erase(dl.begin());
            pl.erase(tp);
            pl.insert(req);
            PutBack(tp);
            if (a[i+k]) dl.insert(req);
        }

    }
}

Compilation message (stderr)

advisor.cpp: In function 'void ComputeAdvice(int*, int, int, int)':
advisor.cpp:68:14: warning: variable 'flag' set but not used [-Wunused-but-set-variable]
   68 |         bool flag = true;
      |              ^~~~
advisor.cpp:63:9: warning: unused variable 'prv' [-Wunused-variable]
   63 |     int prv = -1;
      |         ^~~

assistant.cpp: In function 'void Assist(unsigned char*, int, int, int)':
assistant.cpp:50:19: warning: unused variable 'ptr' [-Wunused-variable]
   50 |     for (int i=0, ptr=0; i<n; i++) {
      |                   ^~~
assistant.cpp:36:9: warning: unused variable 'prv' [-Wunused-variable]
   36 |     int prv = -1;
      |         ^~~

• Subtask 1: 8 / 8
• Subtask 2: 9 / 9
• Subtask 3: 9 / 9
• Subtask 4: 35 / 35
• Subtask 5: 39 / 39