Submission #549711

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
549711	2022-04-16 10:53:12	cpp219	Let's Win the Election (JOI22_ho_t3)	C++17	67 / 100	692 ms	3916 KiB

Main

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#include<bits/stdc++.h>
#define ll long long
#define ld long double
#define fs first
#define sc second
#define debug(y) cout<<y,exit(0)
using namespace std;
typedef pair<ll,ll> LL;
const ll N = 500 + 9;
const ll inf = 1e18 + 7;
ld ans = inf*1.0,dp[N][N];
ll n,k,collab;
LL a[N];
bool lf(LL x,LL y){
    return x.sc < y.sc;
}
ld cal(ll mid){
    for (ll i = 1;i <= n;i++)
        for (ll j = 0;j <= i;j++){
            dp[i][j] = inf;
            if (i - j - 1 >= mid) dp[i][j] = dp[i - 1][j];
            else dp[i][j] = dp[i - 1][j] + (ld)a[i].sc/((ld)i - j);
            if (j) dp[i][j] = min(dp[i][j],dp[i - 1][j - 1] + (ld)a[i].fs/((ld)mid + 1));
        }
    ld tmp = inf;
    for (ll i = k - mid;i <= n;i++)
        if (n - i >= mid) tmp = min(tmp,dp[n][i]);
 
 
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Compilation message (stderr)

Main.cpp: In function 'int main()':
Main.cpp:38:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   38 |         freopen(task".inp","r",stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~

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