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Submission #285549

# Submission time Handle Problem Language Result Execution time Memory
285549 2020-08-29T08:44:34 Z ToMmyDong Gondola (IOI14_gondola) C++11
100 / 100
 67 ms 5112 KB 
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<int,int> pii;
#define first X
#define second Y
#define eb emplace_back
#define ALL(i) i.begin(),i.end()
#define SZ(i) int(i.size())
#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));
}
#else
#define debug(...)
#endif

#include "gondola.h"

int lvalid(int n, int inputSeq[])
{
    
    vector<int> sm;
    set<int> val;
    for (int i=0; i<n; i++) {
        if (inputSeq[i] <= n) {
            sm.push_back(inputSeq[i]);
        }
        val.insert(inputSeq[i]);
    }
    if (SZ(val) != n) return 0;
    int st = min_element(ALL(sm)) - sm.begin();
    for (int i=0; i<SZ(sm)-1; i++) {
        if (sm[(st+i)%SZ(sm)] >= sm[(st+i+1)%SZ(sm)]) {
            debug(i, st);
            return 0;
        }
    }

    return 1;
}

 
int valid(int n, int inputSeq[])
{
    
    vector<int> sm;
    set<int> val;
    for (int i=0; i<n; i++) {
        if (inputSeq[i] <= n) {
            sm.push_back(inputSeq[i]);
            val.insert(inputSeq[i]);
        }
    }
    if (SZ(val) != n) return 0;
    int st = min_element(ALL(sm)) - sm.begin();
    for (int i=0; i<SZ(sm)-1; i++) {
        if (inputSeq[(st+i)%SZ(sm)] >= inputSeq[(st+i+1)%SZ(sm)]) {
            return 0;
        }
    }
 
    return 1;
}
 
//----------------------

const int MAXN = 250005;
int replacement(int n, int gondolaSeq[], int rs[])
{
    set<int> alive;
    vector<int> fin, cur;

    int off = 1;
    for (int i=0; i<n; i++) {
        fin.eb(gondolaSeq[i]);
        if (fin.back() > n) alive.insert(i);
        else off = (n+fin.back()-i) % n;
    }
    debug(off);
    for (int i=0; i<n; i++) {
        cur.eb((off + i - 1) % n + 1);
    }
    debug(cur);
    int mx = *max_element(ALL(fin));
    vector<int> pos(mx+1, -1);
    for (int i=0; i<SZ(fin); i++) {
        pos[fin[i]] = i;
    }
    int res = 0;
    for (int i=n+1; i<=mx; i++) {
        if (pos[i] == -1) {
            int p = *alive.begin();
            rs[res++] = cur[p];
            cur[p] = i;
        } else {
            assert(alive.count(pos[i]));
            alive.erase(pos[i]);
            rs[res++] = cur[pos[i]];
            cur[pos[i]] = i;
        }
        debug(cur);
    }
    return res;

}

//----------------------

const ll MOD = 1000000009;
ll mpow (ll bs, ll ep) {
    ll ret = 1;
    while (ep) {
        if (ep&1) ret = ret * bs % MOD;
        ep >>= 1;
        bs = bs * bs % MOD;
    }
    return ret;
}
int countReplacement(int n, int inputSeq[])
{
    if (lvalid(n, inputSeq) == 0) return 0;
    int off = 1;

    vector<int> fin;
    int mul = n, alive = 0;
    for (int i=0; i<n; i++) {
        int x = inputSeq[i];
        if (x > n) {
            fin.eb(x);
        }
        if (x > n) alive++;
        else mul = 1;
    }
    fin.eb(n);
    sort(ALL(fin));
    ll res = 1;
    for (int i=1; i<SZ(fin); i++) {
        int gap = fin[i] - fin[i-1];
        res = res * mpow(alive, gap-1) % MOD;
        alive--;
    }
    return res * mul % MOD;
}

Compilation message

gondola.cpp: In function 'int countReplacement(int, int*)':
gondola.cpp:133:9: warning: unused variable 'off' [-Wunused-variable]
  133 |     int off = 1;
      |         ^~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 1 ms 256 KB Output is correct
3 Correct 0 ms 256 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 0 ms 256 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 0 ms 384 KB Output is correct
5 Correct 0 ms 384 KB Output is correct
6 Correct 13 ms 2428 KB Output is correct
7 Correct 34 ms 4088 KB Output is correct
8 Correct 26 ms 4212 KB Output is correct
9 Correct 8 ms 1536 KB Output is correct
10 Correct 32 ms 4848 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 256 KB Output is correct
2 Correct 1 ms 324 KB Output is correct
3 Correct 1 ms 256 KB Output is correct
4 Correct 0 ms 384 KB Output is correct
5 Correct 0 ms 256 KB Output is correct
6 Correct 13 ms 2428 KB Output is correct
7 Correct 34 ms 4080 KB Output is correct
8 Correct 26 ms 4220 KB Output is correct
9 Correct 8 ms 1536 KB Output is correct
10 Correct 30 ms 4976 KB Output is correct
11 Correct 0 ms 256 KB Output is correct
12 Correct 0 ms 256 KB Output is correct
13 Correct 6 ms 512 KB Output is correct
14 Correct 0 ms 256 KB Output is correct
15 Correct 32 ms 3964 KB Output is correct

Subtask #4
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 256 KB Output is correct
2 Correct 0 ms 256 KB Output is correct
3 Correct 0 ms 256 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct

Subtask #5
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 0 ms 256 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 0 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 0 ms 256 KB Output is correct
7 Correct 1 ms 384 KB Output is correct
8 Correct 2 ms 384 KB Output is correct
9 Correct 1 ms 384 KB Output is correct
10 Correct 1 ms 384 KB Output is correct

Subtask #6
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 0 ms 256 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 0 ms 256 KB Output is correct
5 Correct 1 ms 256 KB Output is correct
6 Correct 0 ms 384 KB Output is correct
7 Correct 1 ms 384 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 2 ms 384 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Correct 13 ms 1656 KB Output is correct
12 Correct 15 ms 1912 KB Output is correct
13 Correct 36 ms 3068 KB Output is correct
14 Correct 15 ms 1656 KB Output is correct
15 Correct 35 ms 3080 KB Output is correct

Subtask #7
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 384 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 0 ms 256 KB Output is correct

Subtask #8
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 256 KB Output is correct
2 Correct 0 ms 256 KB Output is correct
3 Correct 0 ms 256 KB Output is correct
4 Correct 0 ms 256 KB Output is correct
5 Correct 0 ms 256 KB Output is correct
6 Correct 0 ms 384 KB Output is correct
7 Correct 1 ms 256 KB Output is correct
8 Correct 0 ms 256 KB Output is correct

Subtask #9
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 256 KB Output is correct
2 Correct 1 ms 256 KB Output is correct
3 Correct 1 ms 256 KB Output is correct
4 Correct 1 ms 256 KB Output is correct
5 Correct 1 ms 256 KB Output is correct
6 Correct 1 ms 256 KB Output is correct
7 Correct 1 ms 256 KB Output is correct
8 Correct 0 ms 256 KB Output is correct
9 Correct 48 ms 4088 KB Output is correct
10 Correct 33 ms 3448 KB Output is correct
11 Correct 13 ms 1408 KB Output is correct
12 Correct 16 ms 1664 KB Output is correct
13 Correct 4 ms 640 KB Output is correct

Subtask #10
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 384 KB Output is correct
2 Correct 1 ms 384 KB Output is correct
3 Correct 0 ms 256 KB Output is correct
4 Correct 1 ms 256 KB Output is correct
5 Correct 0 ms 384 KB Output is correct
6 Correct 0 ms 256 KB Output is correct
7 Correct 0 ms 256 KB Output is correct
8 Correct 1 ms 256 KB Output is correct
9 Correct 55 ms 4088 KB Output is correct
10 Correct 42 ms 3456 KB Output is correct
11 Correct 16 ms 1408 KB Output is correct
12 Correct 16 ms 1664 KB Output is correct
13 Correct 4 ms 640 KB Output is correct
14 Correct 54 ms 4600 KB Output is correct
15 Correct 67 ms 5112 KB Output is correct
16 Correct 10 ms 1152 KB Output is correct
17 Correct 43 ms 3576 KB Output is correct
18 Correct 47 ms 2168 KB Output is correct