Submission #807510

#	Time	Username	Problem	Language	Result	Execution time	Memory
807510		Valaki2	Lottery (CEOI18_lot)	C++14	100 / 100	446 ms	8256 KiB

lot

#include <bits/stdc++.h>
using namespace std;

#define ll long long
#define pb push_back
#define mp make_pair
#define pii pair<int, int>
#define fi first
#define se second

const int maxn = 10000; //!!!!!
const int maxq = 100;

int n, l, q;
int v[1 + maxn];
int conv[1 + maxn];
int dp[1 + maxn];
int ans[1 + maxn][1 + maxq];
int qry[1 + maxq];

void solve() {
    cin >> n >> l;
    for(int i = 1; i <= n; i++) {
        cin >> v[i];
    }
    cin >> q;
    for(int i = n; i >= 0; i--) {
        conv[i] = q + 1;
    }
    for(int i = 1; i <= q; i++) {
        cin >> qry[i];
        conv[qry[i]] = i;
    }
    vector<pii> sorted;
    for(int i = n; i >= 0; i--) {
        if(conv[i] != q + 1) {
            sorted.pb(mp(i, conv[i]));
        }
    }
    sort(sorted.begin(), sorted.end());
    for(int i = n - 1; i >= 0; i--) {
        if(conv[i] == q + 1) {
            conv[i] = conv[i + 1];
        }
    }
    for(int offset = 1; offset <= n - l; offset++) {
        for(int i = 1; i <= offset; i++) {
            dp[i] = 0;
        }
        for(int i = 1 + offset; i <= n; i++) {
            dp[i] = dp[i - 1];
            if(v[i] != v[i - offset]) {
                dp[i]++;
            }
            if(i - l + 1 - offset >= 1) {
                #define a (i - l + 1)
                #define b (i - l + 1 - offset)
                #define dist (dp[i] - dp[i - l])
                ans[a][conv[dist]]++;
                ans[b][conv[dist]]++;
            }
        }
    }
    for(int i = 1; i <= n - l + 1; i++) {
        for(int j = 1; j < sorted.size(); j++) {
            if(sorted[j].fi != sorted[j - 1].fi) {
                ans[i][sorted[j].se] += ans[i][sorted[j - 1].se];
            }
        }
    }
    for(int i = 1; i <= q; i++) {
        for(int j = 1; j <= n - l + 1; j++) {
            cout << ans[j][conv[qry[i]]] << " ";
        }
        cout << "\n";
    }
}

signed main() {
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    solve();
    return 0;
}

Compilation message (stderr)

lot.cpp: In function 'void solve()':
lot.cpp:65:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   65 |         for(int j = 1; j < sorted.size(); j++) {
      |                        ~~^~~~~~~~~~~~~~~

• Subtask 1: 25 / 25
• Subtask 2: 20 / 20
• Subtask 3: 20 / 20
• Subtask 4: 15 / 15
• Subtask 5: 20 / 20