제출 #763790

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
763790		MilosMilutinovic	Measures (CEOI22_measures)	C++14	24 / 100	1560 ms	3132 KiB

Main

#include <bits/stdc++.h>
using namespace std;
const int N = 3e5 + 10;
int n, m, d, a[N], b[N];
bool check(long double x) {
    long double prv = a[1] - x;
    for (int i = 2; i <= n; i++) {
        long double L = a[i] - x;
        long double R = a[i] + x;
        long double pos = max(L, prv + d);
        if (pos > R) {
            return false;
        }
        prv = pos;
    }
    return true;
}
int main() {
    scanf("%d%d%d", &n, &m, &d);
    for (int i = 1; i <= n; i++) {
        scanf("%d", &a[i]);
    }
    for (int i = 1; i <= m; i++) {
        scanf("%d", &b[i]);
    }
    for (int i = 1; i <= m; i++) {
        a[++n] = b[i];
        sort(a + 1, a + n + 1);
        long long low = 0, high = 1e17, ans = 1e17;
        while (low <= high) {
            long long mid = low + (high - low) / 2;
            if (check(mid)) {
                ans = mid;
                high = mid - 1;
            } else {
                low = mid + 1;
            }
        }
        if (ans > 0 && check(ans - 0.5))
            printf("%lld.5 ", ans - 1);
        else
            printf("%lld ", ans);
    }
    return 0;
}

컴파일 시 표준 에러 (stderr) 메시지

Main.cpp: In function 'int main()':
Main.cpp:19:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   19 |     scanf("%d%d%d", &n, &m, &d);
      |     ~~~~~^~~~~~~~~~~~~~~~~~~~~~
Main.cpp:21:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   21 |         scanf("%d", &a[i]);
      |         ~~~~~^~~~~~~~~~~~~
Main.cpp:24:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   24 |         scanf("%d", &b[i]);
      |         ~~~~~^~~~~~~~~~~~~

• Subtask 1: 10 / 10
• Subtask 2: 14 / 14
• Subtask 3: 0 / 35
• Subtask 4: 0 / 41