제출 #320767

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
320767		dolphingarlic	Lottery (CEOI18_lot)	C++14	100 / 100	587 ms	12388 KiB

lot

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

int a[10000], lb[10001], pref[101][10000], ans[100][10000];
pair<int, int> k[100];

int main() {
    int n, l, q;
    scanf("%d %d", &n, &l);
    for (int i = 0; i < n; i++) scanf("%d", a + i);
    scanf("%d", &q);
    for (int i = 0; i < q; i++) {
        scanf("%d", &k[i].first);
        k[i].second = i;
    }
    sort(k, k + q);
    fill(lb, lb + l + 1, q);
    for (int t = q - 1; ~t; t--) {
        for (int i = 0; i <= l; i++) if (i <= k[t].first) lb[i] = t;
    }

    for (int dx = 1; dx <= n - l; dx++) {
        int diff = 0;
        for (int p = 0; p < l; p++) diff += (a[p] != a[dx + p]);
        pref[lb[diff]][0]++, pref[lb[diff]][dx]++;
        for (int i = 1; i <= n - l - dx; i++) {
            diff += (a[i + l - 1] != a[i + dx + l - 1]) - (a[i - 1] != a[i + dx - 1]);
            pref[lb[diff]][i]++, pref[lb[diff]][i + dx]++;
        }
    }
    for (int t = 0; t < q; t++) for (int i = 0; i <= n - l; i++) {
        if (t) pref[t][i] += pref[t - 1][i];
        ans[k[t].second][i] = pref[t][i];
    }
    for (int t = 0; t < q; t++) {
        for (int i = 0; i <= n - l; i++) printf("%d ", ans[t][i]);
        printf("\n");
    }
}

컴파일 시 표준 에러 (stderr) 메시지

lot.cpp: In function 'int main()':
lot.cpp:9:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
    9 |     scanf("%d %d", &n, &l);
      |     ~~~~~^~~~~~~~~~~~~~~~~
lot.cpp:10:38: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   10 |     for (int i = 0; i < n; i++) scanf("%d", a + i);
      |                                 ~~~~~^~~~~~~~~~~~~
lot.cpp:11:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   11 |     scanf("%d", &q);
      |     ~~~~~^~~~~~~~~~
lot.cpp:13:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   13 |         scanf("%d", &k[i].first);
      |         ~~~~~^~~~~~~~~~~~~~~~~~~

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