oj.uz

Submission #333766

# Submission time Handle Problem Language Result Execution time Memory
333766 2020-12-07T17:43:59 Z ignaciocanta Sure Bet (CEOI17_sure) C++14
100 / 100
 138 ms 6892 KB 
#include <bits/stdc++.h>
 
using namespace std;
 
using tint = long long;
using ld = long double;
 
#define forsn(i, s, n) for(int i = s; i < int(n); i++)
#define forn(i, n) forsn(i, 0, n)
#define trav(a, x) for(auto& a : x)
 
using vi = vector<int>;
using vl = vector<tint>;
using vb = vector<bool>;
#define pb push_back
#define pf push_front
#define rsz resize
#define all(x) begin(x), end(x)
#define rall(x) x.rbegin(), x.rend() 
#define sz(x) (int)(x).size()
#define ins insert
#define esta(x,c) ((c).find(x) != (c).end())
 
using pi = pair<int,int>;
using pl = pair<tint,tint>;
#define f first
#define s second
#define mp make_pair
 
#define DBG(x) cerr << #x << " = " << x << endl;
 
const int MOD = 1e9+7;
const tint mod = 998244353;
const int MX = 2e5+5; 
const tint INF = 1e18; 
const int inf = 2e9;
const ld PI = acos(ld(-1)); 
const ld eps = 1e-8;
 
const int dx[4] = {1, -1, 0, 0};
const int dy[4] = {0, 0, 1, -1};
 
template<class T> void remDup(vector<T> &v){ 
    sort(all(v)); v.erase(unique(all(v)),end(v));
}
 
bool valid(int x, int y, int n, int m){
    return (0<=x && x<n && 0<=y && y<m);
}
 
int cdiv(int a, int b) { return a/b+((a^b)>0&&a%b); } //redondea p arriba
int fdiv(int a, int b) { return a/b-((a^b)<0&&a%b); } //redonde p abajo
 
void NACHO(string name = "cardgame"){
    ios_base::sync_with_stdio(0); cin.tie(0);
   // freopen((name+".in").c_str(), "r", stdin);
   // freopen((name+".out").c_str(), "w", stdout);
}

int main(){
    NACHO();
    int n; cin >> n;
    vector<ld> a (MX, -inf), b (MX, -inf);
    forn(i, n) cin >> a[i] >> b[i];
    sort(rall(a)); sort(rall(b));
    int pa = 0, pb = 0;
    ld sa = 0.0, sb = 0.0;
    ld ret = 0.0;
    while(pa <= n && pb <= n){
		//cout << sa << " " << sb << endl;
		if(sb < sa){
			sb += b[pb];
			++pb;
		}else{
			sa += a[pa];
			++pa;
		}
		ret = max(ret, min(sa-pa-pb, sb-pa-pb));
	}
	cout << fixed << setprecision(4) << ret << "\n";
}
//OVERFLOW!
//COTAS?
//CHEQUEA LAS CUENTAS

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 34 ms 6764 KB Output is correct
2 Correct 32 ms 6636 KB Output is correct
3 Correct 33 ms 6636 KB Output is correct
4 Correct 35 ms 6636 KB Output is correct
5 Correct 33 ms 6636 KB Output is correct
6 Correct 38 ms 6636 KB Output is correct

Subtask #2
40.0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 34 ms 6764 KB Output is correct
2 Correct 32 ms 6636 KB Output is correct
3 Correct 33 ms 6636 KB Output is correct
4 Correct 35 ms 6636 KB Output is correct
5 Correct 33 ms 6636 KB Output is correct
6 Correct 38 ms 6636 KB Output is correct
7 Correct 33 ms 6636 KB Output is correct
8 Correct 34 ms 6636 KB Output is correct
9 Correct 33 ms 6636 KB Output is correct
10 Correct 33 ms 6636 KB Output is correct
11 Correct 33 ms 6636 KB Output is correct
12 Correct 33 ms 6636 KB Output is correct
13 Correct 33 ms 6636 KB Output is correct
14 Correct 35 ms 6636 KB Output is correct
15 Correct 33 ms 6636 KB Output is correct
16 Correct 34 ms 6636 KB Output is correct

Subtask #3
40.0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 34 ms 6764 KB Output is correct
2 Correct 32 ms 6636 KB Output is correct
3 Correct 33 ms 6636 KB Output is correct
4 Correct 35 ms 6636 KB Output is correct
5 Correct 33 ms 6636 KB Output is correct
6 Correct 38 ms 6636 KB Output is correct
7 Correct 33 ms 6636 KB Output is correct
8 Correct 34 ms 6636 KB Output is correct
9 Correct 33 ms 6636 KB Output is correct
10 Correct 33 ms 6636 KB Output is correct
11 Correct 33 ms 6636 KB Output is correct
12 Correct 33 ms 6636 KB Output is correct
13 Correct 33 ms 6636 KB Output is correct
14 Correct 35 ms 6636 KB Output is correct
15 Correct 33 ms 6636 KB Output is correct
16 Correct 34 ms 6636 KB Output is correct
17 Correct 119 ms 6892 KB Output is correct
18 Correct 120 ms 6792 KB Output is correct
19 Correct 130 ms 6764 KB Output is correct
20 Correct 118 ms 6784 KB Output is correct
21 Correct 138 ms 6764 KB Output is correct
22 Correct 120 ms 6764 KB Output is correct
23 Correct 119 ms 6764 KB Output is correct
24 Correct 117 ms 6764 KB Output is correct
25 Correct 117 ms 6764 KB Output is correct
26 Correct 128 ms 6764 KB Output is correct