oj.uz

Submission #537783

# Submission time Handle Problem Language Result Execution time Memory
537783 2022-03-15T13:52:30 Z kym Let's Win the Election (JOI22_ho_t3) C++14
100 / 100
 255 ms 2368 KB 
#include <bits/stdc++.h>
using namespace std;
#define int ll 
#define FOR(i,s,e) for(ll i = s; i <= (ll)e; ++i)
#define DEC(i,s,e) for(ll i = s; i >= (ll)e; --i)
#define IAMSPEED ios_base::sync_with_stdio(false); cin.tie(0);
#ifdef LOCAL
#define db(x) cerr << #x << "=" << x << "\n"
#define db2(x, y) cerr << #x << "=" << x << " , " << #y << "=" << y << "\n"
#define db3(a,b,c) cerr<<#a<<"="<<a<<","<<#b<<"="<<b<<","<<#c<<"="<<c<<"\n"
#define dbv(v) cerr << #v << ":"; for (auto ite : v) cerr << ite << ' '; cerr <<"\n"
#define dbvp(v) cerr << #v << ":"; for (auto ite : v) cerr << "{"  << ite.f << ',' << ite.s << "} "; cerr << "\n"
#define dba(a,ss,ee) cerr << #a << ":"; FOR(ite,ss,ee) cerr << a[ite] << ' '; cerr << "\n"
#define reach cerr << "LINE: " << __LINE__ << "\n";
#else
#define db(x)
#define db2(x,y)
#define db3(a,b,c)
#define dbv(v)
#define dbvp(v)
#define dba(a,ss,ee)
#define reach 
#endif
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
#define ll long long 
#define pb push_back
#define eb emplace_back
#define all(x) (x).begin(), (x).end()
#define f first
#define s second
#define g0(x) get<0>(x)
#define g1(x) get<1>(x)
#define g2(x) get<2>(x)
#define g3(x) get<3>(x)
typedef pair <ll, ll> pi;
typedef tuple<ll,ll,ll> ti3;
typedef tuple<ll,ll,ll,ll> ti4;
ll rand(ll a, ll b) { return a + rng() % (b-a+1); }
const int MOD = 1e9 + 7;
const int inf = (int)1e9 + 500;
const long long oo = (ll)1e18 + 500;
template <typename T> void chmax(T& a, const T b) { a=max(a,b); }
template <typename T> void chmin(T& a, const T b) { a=min(a,b); }
const int MAXN = 505;
int n,k;
pi A[MAXN];
double dp[MAXN][MAXN]; // dp[index][no. of votes]
int32_t main() 
{
	IAMSPEED
	cin >> n >> k;
	FOR(i,1,n) cin >> A[i].f >> A[i].s;
	int cc = 0;
	FOR(i,1,n) {
		if(A[i].s == -1) A[i].s = oo;
		else ++cc;
	}
	sort(A+1,A+n+1,[](pi a, pi b) {
		return a.s < b.s;
	});
	FOR(i,1,n) {
		db2(A[i].f, A[i].s);
	}
	double ans = oo;
	FOR(m,0,min(cc,k)) { //number of extra collaborators. no empties until i get m collaborators.
		FOR(i,0,n) {
			FOR(j,0,n) dp[i][j] = oo;
		}
		dp[0][0] = 0;
		FOR(i,1,n) {
			FOR(j,0,k-m) { // number pure votes
				int f = i - j;
				if(j)chmin(dp[i][j], dp[i-1][j-1] + (double)A[i].f / (double)(m+1));
				if(f>=0 && f<=m)chmin(dp[i][j], dp[i-1][j] + (double)A[i].s / (double)(f));
				else chmin(dp[i][j], dp[i-1][j]);
			}
		}
		db3(n,m,dp[n][k-m]);
		chmin(ans, dp[n][k-m]);
		reach
	}
	cout << fixed << setprecision(10);
	cout << ans;
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 2 ms 2252 KB Output is correct
6 Correct 2 ms 2248 KB Output is correct
7 Correct 2 ms 2260 KB Output is correct
8 Correct 3 ms 2260 KB Output is correct
9 Correct 2 ms 2252 KB Output is correct
10 Correct 2 ms 2260 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 2 ms 2252 KB Output is correct
6 Correct 2 ms 2248 KB Output is correct
7 Correct 2 ms 2260 KB Output is correct
8 Correct 3 ms 2260 KB Output is correct
9 Correct 2 ms 2252 KB Output is correct
10 Correct 2 ms 2260 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 33 ms 2244 KB Output is correct
13 Correct 28 ms 2300 KB Output is correct
14 Correct 25 ms 2312 KB Output is correct
15 Correct 106 ms 2300 KB Output is correct
16 Correct 103 ms 2260 KB Output is correct
17 Correct 44 ms 2304 KB Output is correct
18 Correct 222 ms 2296 KB Output is correct
19 Correct 171 ms 2304 KB Output is correct
20 Correct 54 ms 2300 KB Output is correct

Subtask #3
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 1 ms 328 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 384 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 1 ms 328 KB Output is correct
15 Correct 1 ms 340 KB Output is correct

Subtask #4
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 1 ms 328 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 384 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 1 ms 328 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 332 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 1 ms 328 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 1 ms 340 KB Output is correct
23 Correct 1 ms 340 KB Output is correct
24 Correct 1 ms 340 KB Output is correct
25 Correct 1 ms 340 KB Output is correct
26 Correct 1 ms 340 KB Output is correct
27 Correct 1 ms 328 KB Output is correct
28 Correct 1 ms 340 KB Output is correct
29 Correct 1 ms 340 KB Output is correct
30 Correct 1 ms 340 KB Output is correct
31 Correct 1 ms 328 KB Output is correct
32 Correct 1 ms 340 KB Output is correct
33 Correct 1 ms 340 KB Output is correct
34 Correct 1 ms 340 KB Output is correct
35 Correct 1 ms 340 KB Output is correct
36 Correct 1 ms 340 KB Output is correct
37 Correct 1 ms 328 KB Output is correct
38 Correct 1 ms 340 KB Output is correct
39 Correct 1 ms 340 KB Output is correct
40 Correct 1 ms 328 KB Output is correct

Subtask #5
33.0 / 33.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 1 ms 328 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 384 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 1 ms 328 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 332 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 1 ms 328 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 1 ms 340 KB Output is correct
23 Correct 1 ms 340 KB Output is correct
24 Correct 1 ms 340 KB Output is correct
25 Correct 1 ms 340 KB Output is correct
26 Correct 1 ms 340 KB Output is correct
27 Correct 1 ms 328 KB Output is correct
28 Correct 1 ms 340 KB Output is correct
29 Correct 1 ms 340 KB Output is correct
30 Correct 1 ms 340 KB Output is correct
31 Correct 1 ms 328 KB Output is correct
32 Correct 1 ms 340 KB Output is correct
33 Correct 1 ms 340 KB Output is correct
34 Correct 1 ms 340 KB Output is correct
35 Correct 1 ms 340 KB Output is correct
36 Correct 1 ms 340 KB Output is correct
37 Correct 1 ms 328 KB Output is correct
38 Correct 1 ms 340 KB Output is correct
39 Correct 1 ms 340 KB Output is correct
40 Correct 1 ms 328 KB Output is correct
41 Correct 1 ms 724 KB Output is correct
42 Correct 1 ms 724 KB Output is correct
43 Correct 1 ms 716 KB Output is correct
44 Correct 1 ms 724 KB Output is correct
45 Correct 1 ms 724 KB Output is correct
46 Correct 1 ms 716 KB Output is correct
47 Correct 2 ms 716 KB Output is correct
48 Correct 2 ms 724 KB Output is correct
49 Correct 2 ms 724 KB Output is correct
50 Correct 2 ms 724 KB Output is correct
51 Correct 3 ms 724 KB Output is correct
52 Correct 2 ms 724 KB Output is correct
53 Correct 2 ms 724 KB Output is correct
54 Correct 1 ms 724 KB Output is correct
55 Correct 2 ms 724 KB Output is correct
56 Correct 1 ms 724 KB Output is correct
57 Correct 2 ms 708 KB Output is correct
58 Correct 1 ms 724 KB Output is correct
59 Correct 2 ms 724 KB Output is correct
60 Correct 1 ms 724 KB Output is correct

Subtask #6
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 213 ms 2300 KB Output is correct
2 Correct 240 ms 2300 KB Output is correct
3 Correct 205 ms 2316 KB Output is correct
4 Correct 223 ms 2300 KB Output is correct
5 Correct 255 ms 2304 KB Output is correct
6 Correct 211 ms 2296 KB Output is correct
7 Correct 234 ms 2300 KB Output is correct

Subtask #7
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 2 ms 2252 KB Output is correct
6 Correct 2 ms 2248 KB Output is correct
7 Correct 2 ms 2260 KB Output is correct
8 Correct 3 ms 2260 KB Output is correct
9 Correct 2 ms 2252 KB Output is correct
10 Correct 2 ms 2260 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 33 ms 2244 KB Output is correct
13 Correct 28 ms 2300 KB Output is correct
14 Correct 25 ms 2312 KB Output is correct
15 Correct 106 ms 2300 KB Output is correct
16 Correct 103 ms 2260 KB Output is correct
17 Correct 44 ms 2304 KB Output is correct
18 Correct 222 ms 2296 KB Output is correct
19 Correct 171 ms 2304 KB Output is correct
20 Correct 54 ms 2300 KB Output is correct
21 Correct 0 ms 340 KB Output is correct
22 Correct 1 ms 328 KB Output is correct
23 Correct 1 ms 332 KB Output is correct
24 Correct 1 ms 340 KB Output is correct
25 Correct 1 ms 340 KB Output is correct
26 Correct 1 ms 332 KB Output is correct
27 Correct 1 ms 340 KB Output is correct
28 Correct 1 ms 340 KB Output is correct
29 Correct 1 ms 332 KB Output is correct
30 Correct 1 ms 340 KB Output is correct
31 Correct 1 ms 340 KB Output is correct
32 Correct 1 ms 384 KB Output is correct
33 Correct 1 ms 340 KB Output is correct
34 Correct 1 ms 328 KB Output is correct
35 Correct 1 ms 340 KB Output is correct
36 Correct 1 ms 340 KB Output is correct
37 Correct 1 ms 332 KB Output is correct
38 Correct 1 ms 340 KB Output is correct
39 Correct 1 ms 340 KB Output is correct
40 Correct 1 ms 328 KB Output is correct
41 Correct 1 ms 340 KB Output is correct
42 Correct 1 ms 340 KB Output is correct
43 Correct 1 ms 340 KB Output is correct
44 Correct 1 ms 340 KB Output is correct
45 Correct 1 ms 340 KB Output is correct
46 Correct 1 ms 340 KB Output is correct
47 Correct 1 ms 328 KB Output is correct
48 Correct 1 ms 340 KB Output is correct
49 Correct 1 ms 340 KB Output is correct
50 Correct 1 ms 340 KB Output is correct
51 Correct 1 ms 328 KB Output is correct
52 Correct 1 ms 340 KB Output is correct
53 Correct 1 ms 340 KB Output is correct
54 Correct 1 ms 340 KB Output is correct
55 Correct 1 ms 340 KB Output is correct
56 Correct 1 ms 340 KB Output is correct
57 Correct 1 ms 328 KB Output is correct
58 Correct 1 ms 340 KB Output is correct
59 Correct 1 ms 340 KB Output is correct
60 Correct 1 ms 328 KB Output is correct
61 Correct 1 ms 724 KB Output is correct
62 Correct 1 ms 724 KB Output is correct
63 Correct 1 ms 716 KB Output is correct
64 Correct 1 ms 724 KB Output is correct
65 Correct 1 ms 724 KB Output is correct
66 Correct 1 ms 716 KB Output is correct
67 Correct 2 ms 716 KB Output is correct
68 Correct 2 ms 724 KB Output is correct
69 Correct 2 ms 724 KB Output is correct
70 Correct 2 ms 724 KB Output is correct
71 Correct 3 ms 724 KB Output is correct
72 Correct 2 ms 724 KB Output is correct
73 Correct 2 ms 724 KB Output is correct
74 Correct 1 ms 724 KB Output is correct
75 Correct 2 ms 724 KB Output is correct
76 Correct 1 ms 724 KB Output is correct
77 Correct 2 ms 708 KB Output is correct
78 Correct 1 ms 724 KB Output is correct
79 Correct 2 ms 724 KB Output is correct
80 Correct 1 ms 724 KB Output is correct
81 Correct 213 ms 2300 KB Output is correct
82 Correct 240 ms 2300 KB Output is correct
83 Correct 205 ms 2316 KB Output is correct
84 Correct 223 ms 2300 KB Output is correct
85 Correct 255 ms 2304 KB Output is correct
86 Correct 211 ms 2296 KB Output is correct
87 Correct 234 ms 2300 KB Output is correct
88 Correct 8 ms 2260 KB Output is correct
89 Correct 8 ms 2320 KB Output is correct
90 Correct 24 ms 2320 KB Output is correct
91 Correct 35 ms 2260 KB Output is correct
92 Correct 66 ms 2312 KB Output is correct
93 Correct 62 ms 2296 KB Output is correct
94 Correct 125 ms 2296 KB Output is correct
95 Correct 140 ms 2260 KB Output is correct
96 Correct 209 ms 2368 KB Output is correct
97 Correct 167 ms 2316 KB Output is correct
98 Correct 127 ms 2260 KB Output is correct
99 Correct 117 ms 2300 KB Output is correct
100 Correct 107 ms 2312 KB Output is correct
101 Correct 107 ms 2316 KB Output is correct
102 Correct 108 ms 2304 KB Output is correct
103 Correct 111 ms 2260 KB Output is correct
104 Correct 106 ms 2296 KB Output is correct
105 Correct 109 ms 2300 KB Output is correct