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Submission #166620

# Submission time Handle Problem Language Result Execution time Memory
166620 2019-12-03T06:38:24 Z TAISA_ Gondola (IOI14_gondola) C++14
60 / 100
 47 ms 4604 KB 
#include "gondola.h"
#include <bits/stdc++.h>
using namespace std;
using P = pair<int, int>;
using ll = long long;
int valid(int n, int inputSeq[]) {
    int b = -1;
    set<int> st;
    for (int i = 0; i < n; i++) {
        if (st.count(inputSeq[i])) {
            return 0;
        }
        st.insert(inputSeq[i]);
        if (inputSeq[i] <= n) {
            if (b == -1) {
                b = inputSeq[i];
            } else {
                if (b == n) {
                    if (inputSeq[i] != 1) {
                        return 0;
                    }
                    b = 1;
                } else {
                    if (inputSeq[i] != b + 1) {
                        return 0;
                    }
                    b++;
                }
            }
        } else {
            if (b != -1) {
                b++;
            }
        }
    }
    return 1;
}

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

int replacement(int n, int gondolaSeq[], int replacementSeq[]) {
    int ma = -1;
    vector<int> co(250010), idx(n);
    int id = 0;
    int b = -1;
    for (int i = 0; i < n; i++) {
        if (gondolaSeq[i] <= n) {
            if (b == -1) {
                b = gondolaSeq[i];
                for (int j = i; j < n; j++) {
                    idx[j] = b;
                    b++;
                    if (b == n + 1) {
                        b = 1;
                    }
                }
                for (int j = 0; j < i; j++) {
                    idx[j] = b;
                    b++;
                    if (b == n + 1) {
                        b = 1;
                    }
                }
                break;
            }
        }
    }
    if (b == -1) {
        for (int i = 0; i < n; i++) {
            idx[i] = i + 1;
        }
    }
    vector<P> v;
    for (int i = 0; i < n; i++) {
        if (gondolaSeq[i] > n) {
            ma = max(ma, gondolaSeq[i]);
            v.push_back(P(gondolaSeq[i], i));
            co[gondolaSeq[i]] = 1;
        }
    }
    sort(v.begin(), v.end());
    int t = n + 1;
    for (int i = 0; i < v.size(); i++) {
        replacementSeq[id] = idx[v[i].second];
        id++;
        for (int j = t; j < gondolaSeq[v[i].second]; j++) {
            replacementSeq[id] = j;
            id++;
        }
        t = gondolaSeq[v[i].second] + 1;
    }
    return id;
}

//----------------------
const ll MOD = 1000000009LL;
ll mpow(ll x, ll n) {
    ll res = 1;
    while (n > 0) {
        if (n & 1) {
            res *= x;
            res %= MOD;
        }
        x *= x;
        x %= MOD;
        n >>= 1;
    }
    return res;
}
int countReplacement(int n, int inputSeq[]) {
    if (!valid(n, inputSeq)) {
        return 0;
    }
    int ma = -1;
    vector<int> idx(n);
    int id = 0;
    int b = -1;
    for (int i = 0; i < n; i++) {
        if (inputSeq[i] <= n) {
            if (b == -1) {
                b = inputSeq[i];
                for (int j = i; j < n; j++) {
                    idx[j] = b;
                    b++;
                    if (b == n + 1) {
                        b = 1;
                    }
                }
                for (int j = 0; j < i; j++) {
                    idx[j] = b;
                    b++;
                    if (b == n + 1) {
                        b = 1;
                    }
                }
                break;
            }
        }
    }
    ll res = 1;
    if (b == -1) {
        res *= n;
        for (int i = 0; i < n; i++) {
            idx[i] = i + 1;
        }
    }
    vector<P> v;
    for (int i = 0; i < n; i++) {
        if (inputSeq[i] > n) {
            v.push_back(P(inputSeq[i], i));
        }
    }
    sort(v.begin(), v.end());
    ll co = v.size();
    if (co == 0) {
        return 1;
    }
    b = n + 1;
    for (int i = 0; i < v.size(); i++) {
        res *= mpow(co, v[i].first - b);
        res %= MOD;
        --co;
        b = v[i].first + 1;
    }
    return res;
}

Compilation message

gondola.cpp: In function 'int replacement(int, int*, int*)':
gondola.cpp:83:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (int i = 0; i < v.size(); i++) {
                     ~~^~~~~~~~~~
gondola.cpp: In function 'int countReplacement(int, int*)':
gondola.cpp:159:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (int i = 0; i < v.size(); i++) {
                     ~~^~~~~~~~~~
gondola.cpp:114:9: warning: unused variable 'ma' [-Wunused-variable]
     int ma = -1;
         ^~
gondola.cpp:116:9: warning: unused variable 'id' [-Wunused-variable]
     int id = 0;
         ^~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 256 KB Output is correct
2 Correct 2 ms 256 KB Output is correct
3 Correct 2 ms 256 KB Output is correct
4 Correct 2 ms 380 KB Output is correct
5 Correct 2 ms 256 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 252 KB Output is correct
2 Correct 2 ms 256 KB Output is correct
3 Correct 3 ms 256 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 256 KB Output is correct
6 Correct 19 ms 2168 KB Output is correct
7 Correct 14 ms 764 KB Output is correct
8 Correct 34 ms 3960 KB Output is correct
9 Correct 12 ms 1400 KB Output is correct
10 Correct 46 ms 4600 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 348 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 252 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 4 ms 376 KB Output is correct
6 Correct 19 ms 2168 KB Output is correct
7 Correct 14 ms 632 KB Output is correct
8 Correct 36 ms 3960 KB Output is correct
9 Correct 11 ms 1400 KB Output is correct
10 Correct 47 ms 4604 KB Output is correct
11 Correct 2 ms 380 KB Output is correct
12 Correct 2 ms 256 KB Output is correct
13 Correct 7 ms 504 KB Output is correct
14 Correct 2 ms 380 KB Output is correct
15 Correct 14 ms 632 KB Output is correct

Subtask #4
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 1272 KB Output is correct
2 Correct 3 ms 1272 KB Output is correct
3 Correct 3 ms 1272 KB Output is correct
4 Correct 3 ms 1400 KB Output is correct
5 Correct 3 ms 1272 KB Output is correct

Subtask #5
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 1272 KB Output is correct
2 Correct 3 ms 1272 KB Output is correct
3 Correct 3 ms 1272 KB Output is correct
4 Correct 3 ms 1272 KB Output is correct
5 Correct 3 ms 1272 KB Output is correct
6 Correct 3 ms 1272 KB Output is correct
7 Correct 3 ms 1400 KB Output is correct
8 Correct 4 ms 1400 KB Output is correct
9 Correct 3 ms 1272 KB Output is correct
10 Correct 3 ms 1400 KB Output is correct

Subtask #6
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 1272 KB Output is correct
2 Correct 3 ms 1272 KB Output is correct
3 Correct 3 ms 1272 KB Output is correct
4 Correct 3 ms 1272 KB Output is correct
5 Correct 3 ms 1272 KB Output is correct
6 Correct 3 ms 1272 KB Output is correct
7 Correct 3 ms 1400 KB Output is correct
8 Correct 3 ms 1400 KB Output is correct
9 Correct 3 ms 1272 KB Output is correct
10 Correct 4 ms 1400 KB Output is correct
11 Correct 13 ms 1884 KB Output is correct
12 Correct 14 ms 2040 KB Output is correct
13 Correct 19 ms 2164 KB Output is correct
14 Correct 13 ms 1912 KB Output is correct
15 Correct 25 ms 2316 KB Output is correct

Subtask #7
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct

Subtask #8
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 256 KB Output is correct
5 Incorrect 2 ms 252 KB Output isn't correct
6 Halted 0 ms 0 KB -

Subtask #9
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 256 KB Output is correct
3 Correct 2 ms 256 KB Output is correct
4 Correct 2 ms 256 KB Output is correct
5 Incorrect 2 ms 256 KB Output isn't correct
6 Halted 0 ms 0 KB -

Subtask #10
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 256 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 252 KB Output is correct
5 Incorrect 2 ms 348 KB Output isn't correct
6 Halted 0 ms 0 KB -