제출 #1108528

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1108528		dzhoz0	Balloons (CEOI11_bal)	C++17	10 / 100	2076 ms	5460 KiB

bal

/*
    ghmt the cutie :3
          UwU
*/

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

#define int long long
#define INF 1e18
#define f first
#define s second
#define pii pair<int, int>
#define vi vector<int>

const int MOD = 1'000'000'000 + 7;

void setIO(string name = "")
{
    ios_base::sync_with_stdio(0);
    cin.tie(0), cout.tie(0);
#ifdef LOCAL
    freopen("inp.txt", "r", stdin);
    freopen("out.txt", "w", stdout);
#else
    if (!name.empty())
    {
        freopen((name + ".INP").c_str(), "r", stdin);
        freopen((name + ".OUT").c_str(), "w", stdout);
    }
#endif
}
const int MAXN = 2e5;
int n;
double x[MAXN + 5], r[MAXN + 5];
double res[MAXN + 5];

int sq(int x) {
    return x * x;            
}

namespace sub1 {
    bool check() {
        return n <= 2'000;
    }

    void solve() {
        for(int i = 1; i <= n; i++) {
            res[i] = r[i];
            for(int j = 1; j < i; j++) {
                res[i] = min(res[i], sq(x[i] - x[j]) / (4 * r[j]));
            }
        }

        for(int i = 1; i <= n; i++) cout << fixed << setprecision(6) << res[i] << '\n';
    }
}

void solve()
{
    cin >> n;
    for(int i = 1; i <= n; i++) {
        cin >> x[i] >> r[i];
    }
    // if(sub1::check()) {
        sub1::solve();
    //     return;
    // }
}
signed main()
{
    setIO();
    int t = 1;
    // cin >> t;
    while (t--)
        solve();
}

컴파일 시 표준 에러 (stderr) 메시지

bal.cpp: In function 'void setIO(std::string)':
bal.cpp:29:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   29 |         freopen((name + ".INP").c_str(), "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
bal.cpp:30:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   30 |         freopen((name + ".OUT").c_str(), "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 0 / 10
• Subtask 2: 10 / 10
• Subtask 3: 0 / 10
• Subtask 4: 0 / 10
• Subtask 5: 0 / 10
• Subtask 6: 0 / 10
• Subtask 7: 0 / 10
• Subtask 8: 0 / 10
• Subtask 9: 0 / 10
• Subtask 10: 0 / 10