Submission #114155

#	Time	Username	Problem	Language	Result	Execution time	Memory
114155		MladenP	Rice Hub (IOI11_ricehub)	C++17	100 / 100	18 ms	1152 KiB

ricehub

#include<bits/stdc++.h>
#define STIZE(x) fprintf(stderr, "STIZE%d\n", x);
#define PRINT(x) fprintf(stderr, "%s = %d\n", #x, x);
#define NL(x) printf("%c", " \n"[(x)]);
#define lld long long
#define pii pair<int,int>
#define pb push_back
#define fi first
#define se second
#define mid (l+r)/2
#define endl '\n'
#define all(a) begin(a),end(a)
#define sz(a) int((a).size())
#define LINF 1000000000000000LL
#define INF 1000000000
#define EPS 1e-9
using namespace std;
#define MAXN 100010
int x[MAXN];
lld n, b;
bool check(lld key) {
    int c = key/2;
    lld l = c, r = key-l-1;
    lld L = 0, R = 0;
    for(int i = 0; i < c; i++) L += x[i];
    for(int i = c+1; i < key; i++) R += x[i];
    lld rez = R-r*x[c]+l*x[c]-L;
    for(int i = 1; i <= n-key; i++) {
        c++;
        L -= x[i-1]; L += x[c-1];
        R -= x[c]; R += x[i+key-1];
        if(R-r*x[c]+l*x[c]-L < rez) rez = R-r*x[c]+l*x[c]-L;
    }
    return rez <= b;
}
int besthub(int R, int L, int X[], long long B) {
    n = R, b = B;
    for(int i = 0; i < R; i++) x[i] = X[i];
    int l = 2, r = R, rez = 1;
    while(l <= r) {
        if(check(mid)) rez = mid, l = mid+1;
        else r = mid-1;
    }
    return rez;
}

• Subtask 1: 17 / 17
• Subtask 2: 25 / 25
• Subtask 3: 26 / 26
• Subtask 4: 32 / 32