Submission #521690

#	Time	Username	Problem	Language	Result	Execution time	Memory
521690		AmirElarbi	Balloons (CEOI11_bal)	C++14	0 / 100	2098 ms	2300 KiB

bal

#include <bits/stdc++.h>
#define vi vector<int>
#define ve vector
#define ll long long
#define vf vector<float>
#define vll vector<pair<ll,ll>>
#define ii pair<int,int>
#define vvi vector<vi>
#define vii vector<ii>
#define gii greater<ii>
#define pb push_back
#define mp make_pair
#define fi first
#define se second
#define INF 1e16
#define eps 1e-7
#define eps1 1e-25
#define optimise ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL);
#define MAX_A 1e5+5
#define V 450
using namespace std;
const int MOD = 1e9+7;
const int nax = 2e5+5;
ve<pair<long double,long double>> s;
long double a[nax];
int main(){ 
    optimise;
    #ifndef ONLINE_JUDGE
        freopen("input.txt", "r", stdin);
        freopen("output.txt", "w", stdout);
    #endif
    int n;
    cin >> n;
    for (int i = 0; i < n; ++i)
    {
        long double x,mr;
        cin >> x >> mr;
        s.pb({x,mr});
    }
    for (int i = 0; i < n; ++i)
    {
        long double mx = s[i].se;
        for (int j = 0; j < i; ++j)
        {
            long double r = (long double)((s[j].fi-s[i].fi)*(s[j].fi-s[i].fi))/(long double) (4*a[j]);
            mx = min(mx, r);
        }
        a[i] = mx;
        cout << mx << endl;
    }
}

Compilation message (stderr)

bal.cpp: In function 'int main()':
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("input.txt", "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("output.txt", "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~

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