제출 #121054

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
121054		BThero	Lottery (CEOI18_lot)	C++17	45 / 100	123 ms	31912 KiB

lot

// Why am I so dumb? :c
// chrono::system_clock::now().time_since_epoch().count()

//#pragma GCC optimize("Ofast")
//#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")

#include<bits/stdc++.h>
#include<ext/pb_ds/assoc_container.hpp>
#include<ext/pb_ds/tree_policy.hpp>

#define pb push_back
#define mp make_pair

#define all(x) (x).begin(), (x).end()

#define fi first
#define se second

using namespace std;
using namespace __gnu_pbds;

typedef long long ll;   
template<typename T> using ordered_set = tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;

const int MAXN = (int)2e3 + 5;

int diff[MAXN][MAXN];

int ans[MAXN][MAXN];

int arr[MAXN];

int n, l, q;

void solve() {
    scanf("%d %d", &n, &l);

    for (int i = 1; i <= n; ++i) {
        scanf("%d", &arr[i]);
    }

    for (int i = 1; i <= n; ++i) {
        for (int j = i + 1; j <= n; ++j) {
            if (arr[i] != arr[j]) {
                ++diff[i][j];

                if (i > l) {
                    --diff[i - l][j - l];
                }
            }
        }
    }

    for (int i = n - 1; i > 0; --i) {
        for (int j = i + 1; j < n; ++j) {
            diff[i][j] += diff[i + 1][j + 1];
        }
    }    

    for (int i = 1; i + l - 1 <= n; ++i) {
        for (int j = i + 1; j + l - 1 <= n; ++j) {
            ++ans[i][diff[i][j]];
            ++ans[j][diff[i][j]];
        }
    }

    for (int i = 1; i + l - 1 <= n; ++i) {
        for (int j = 1; j <= n; ++j) {
            ans[i][j] += ans[i][j - 1];
        }
    }

    scanf("%d", &q);

    for (int i = 1; i <= q; ++i) {
        int k;
        scanf("%d", &k);

        for (int j = 1; j + l - 1 <= n; ++j) {
            printf("%d ", ans[j][k]);
        }

        printf("\n");
    }
}

int main() {
    int tt = 1;

    while (tt--) {
        solve();
    }

    return 0;
}

컴파일 시 표준 에러 (stderr) 메시지

lot.cpp: In function 'void solve()':
lot.cpp:36:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d %d", &n, &l);
     ~~~~~^~~~~~~~~~~~~~~~~
lot.cpp:39:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d", &arr[i]);
         ~~~~~^~~~~~~~~~~~~~~
lot.cpp:73:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d", &q);
     ~~~~~^~~~~~~~~~
lot.cpp:77:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d", &k);
         ~~~~~^~~~~~~~~~

• Subtask 1: 25 / 25
• Subtask 2: 20 / 20
• Subtask 3: 0 / 20
• Subtask 4: 0 / 15
• Subtask 5: 0 / 20