| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 1048461 |
2024-08-08T07:46:27 Z |
pcc |
The Big Prize (IOI17_prize) |
C++17 |
|
131 ms |
3544 KB |
#include "prize.h"
#include <bits/stdc++.h>
#include <bits/extc++.h>
using namespace __gnu_pbds;
using namespace std;
template <typename T>
using ordered_set = tree<T,null_type,less<T>,rb_tree_tag,tree_order_statistics_node_update>;
#define pii pair<int,int>
#define fs first
#define sc second
#ifdef LOCAL
const int lim = 3;
const int dt = 5;
#else
const int lim = 5000;
const int dt = 500;
#endif
const int mxn = 2e5+10;
pii dp[mxn];
int N;
int big = 1e9;
int ans = 0;
bool done = false;
int C = 0;
ordered_set<int> st;
pii req(int p){
if(dp[p].fs != -1)return dp[p];
C++;
assert(C<=10000);
auto re = ask(p);
return (dp[p] = pii(re[0],re[1]));
}
int check(int p){
auto re = req(p);
if(!re.fs&&!re.sc)return 0;
else if(N-re.fs-re.sc == big)return 2;
else{
st.insert(p);
return 1;
}
}
void dfs(int l,int r){
if(done)return;
cerr<<"DFS: "<<l<<','<<r<<endl;
while(l<=r){
if(!check(l)){
ans = l;
done = true;
return;
}
else if(check(l) == 1){
l++;
}
else break;
}
while(l<=r){
if(!check(r)){
ans = r;
done = true;
return;
}
else if(check(r) == 1){
r--;
}
else break;
}
if(l>=r)return;
int cnt = req(r).fs+req(l).sc-(N-big);
if(!cnt)return;
cerr<<"CHECK: "<<l<<','<<r<<','<<cnt<<endl;
assert(cnt>0);
int mid = (l+r)>>1;
if(check(mid) == 0){
ans = mid;
done = true;
return;
}
if(l == r)return;
if(l != mid)dfs(l,mid);
if(mid != r)dfs(mid,r);
return;
}
int find_best(int nn) {
mt19937 seed(time(NULL));
#define rnd(l,r) uniform_int_distribution<int>(l,r)(seed)
N = nn;
int pt = 0;
for(int i = 1;i*i<2e5;i++)pt = i;
cerr<<pt<<endl;
for(auto &i:dp)i = pii(-1,-1);
if(N<=lim){
for(int i = 0;i<N;i++){
auto tmp = req(i);
if(!tmp.fs&&!tmp.sc)return i;
}
assert(false);
return 0;
}
vector<int> perm;
for(int i = 0;i<N;i++)perm.push_back(i);
shuffle(perm.begin(),perm.end(),seed);
for(int i = 0;i<dt;i++){
auto tmp = req(perm[i]);
big = min(big,N-tmp.fs-tmp.sc);
}
cerr<<"BIG: "<<big<<endl;
dfs(0,N-1);
if(!done)exit(0);
return ans;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
6 ms |
3024 KB |
Output is correct |
| 2 |
Correct |
7 ms |
3024 KB |
Output is correct |
| 3 |
Correct |
7 ms |
3020 KB |
Output is correct |
| 4 |
Correct |
5 ms |
3024 KB |
Output is correct |
| 5 |
Correct |
6 ms |
3024 KB |
Output is correct |
| 6 |
Correct |
5 ms |
3024 KB |
Output is correct |
| 7 |
Correct |
5 ms |
3024 KB |
Output is correct |
| 8 |
Correct |
6 ms |
3024 KB |
Output is correct |
| 9 |
Correct |
6 ms |
3024 KB |
Output is correct |
| 10 |
Correct |
7 ms |
3024 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
6 ms |
3024 KB |
Output is correct |
| 2 |
Correct |
5 ms |
3024 KB |
Output is correct |
| 3 |
Correct |
6 ms |
3024 KB |
Output is correct |
| 4 |
Correct |
5 ms |
3024 KB |
Output is correct |
| 5 |
Correct |
6 ms |
3116 KB |
Output is correct |
| 6 |
Correct |
5 ms |
3024 KB |
Output is correct |
| 7 |
Correct |
5 ms |
3024 KB |
Output is correct |
| 8 |
Correct |
6 ms |
3024 KB |
Output is correct |
| 9 |
Correct |
6 ms |
3036 KB |
Output is correct |
| 10 |
Correct |
5 ms |
3024 KB |
Output is correct |
| 11 |
Correct |
11 ms |
3024 KB |
Output is correct |
| 12 |
Correct |
5 ms |
3024 KB |
Output is correct |
| 13 |
Correct |
19 ms |
3024 KB |
Output is correct |
| 14 |
Correct |
5 ms |
2392 KB |
Output is correct |
| 15 |
Correct |
17 ms |
3116 KB |
Output is correct |
| 16 |
Correct |
68 ms |
3024 KB |
Output is correct |
| 17 |
Correct |
5 ms |
3024 KB |
Output is correct |
| 18 |
Partially correct |
82 ms |
3264 KB |
Partially correct - number of queries: 5110 |
| 19 |
Correct |
5 ms |
3020 KB |
Output is correct |
| 20 |
Correct |
22 ms |
2572 KB |
Output is correct |
| 21 |
Correct |
36 ms |
3024 KB |
Output is correct |
| 22 |
Correct |
10 ms |
3024 KB |
Output is correct |
| 23 |
Correct |
5 ms |
3024 KB |
Output is correct |
| 24 |
Correct |
5 ms |
3024 KB |
Output is correct |
| 25 |
Correct |
42 ms |
3024 KB |
Output is correct |
| 26 |
Correct |
43 ms |
3188 KB |
Output is correct |
| 27 |
Correct |
6 ms |
3024 KB |
Output is correct |
| 28 |
Correct |
78 ms |
3024 KB |
Output is correct |
| 29 |
Correct |
57 ms |
3024 KB |
Output is correct |
| 30 |
Partially correct |
107 ms |
3024 KB |
Partially correct - number of queries: 5087 |
| 31 |
Correct |
6 ms |
3024 KB |
Output is correct |
| 32 |
Correct |
15 ms |
3024 KB |
Output is correct |
| 33 |
Correct |
1 ms |
1880 KB |
Output is correct |
| 34 |
Correct |
28 ms |
3024 KB |
Output is correct |
| 35 |
Correct |
8 ms |
3024 KB |
Output is correct |
| 36 |
Correct |
28 ms |
3024 KB |
Output is correct |
| 37 |
Correct |
7 ms |
3024 KB |
Output is correct |
| 38 |
Correct |
5 ms |
3112 KB |
Output is correct |
| 39 |
Correct |
45 ms |
3024 KB |
Output is correct |
| 40 |
Correct |
90 ms |
3024 KB |
Output is correct |
| 41 |
Correct |
54 ms |
3512 KB |
Output is correct |
| 42 |
Correct |
51 ms |
3024 KB |
Output is correct |
| 43 |
Correct |
48 ms |
3024 KB |
Output is correct |
| 44 |
Correct |
36 ms |
3024 KB |
Output is correct |
| 45 |
Correct |
41 ms |
3024 KB |
Output is correct |
| 46 |
Correct |
7 ms |
3276 KB |
Output is correct |
| 47 |
Correct |
51 ms |
3024 KB |
Output is correct |
| 48 |
Correct |
66 ms |
3024 KB |
Output is correct |
| 49 |
Correct |
13 ms |
3024 KB |
Output is correct |
| 50 |
Partially correct |
95 ms |
3212 KB |
Partially correct - number of queries: 5113 |
| 51 |
Correct |
35 ms |
3024 KB |
Output is correct |
| 52 |
Correct |
6 ms |
3024 KB |
Output is correct |
| 53 |
Correct |
7 ms |
3024 KB |
Output is correct |
| 54 |
Correct |
39 ms |
3024 KB |
Output is correct |
| 55 |
Correct |
6 ms |
3024 KB |
Output is correct |
| 56 |
Partially correct |
92 ms |
3228 KB |
Partially correct - number of queries: 5093 |
| 57 |
Correct |
74 ms |
3164 KB |
Output is correct |
| 58 |
Correct |
64 ms |
3024 KB |
Output is correct |
| 59 |
Correct |
52 ms |
3040 KB |
Output is correct |
| 60 |
Correct |
47 ms |
3024 KB |
Output is correct |
| 61 |
Correct |
7 ms |
3024 KB |
Output is correct |
| 62 |
Correct |
6 ms |
3024 KB |
Output is correct |
| 63 |
Correct |
8 ms |
3024 KB |
Output is correct |
| 64 |
Correct |
6 ms |
3024 KB |
Output is correct |
| 65 |
Correct |
5 ms |
3024 KB |
Output is correct |
| 66 |
Correct |
7 ms |
3024 KB |
Output is correct |
| 67 |
Correct |
9 ms |
3116 KB |
Output is correct |
| 68 |
Correct |
7 ms |
3024 KB |
Output is correct |
| 69 |
Correct |
6 ms |
3024 KB |
Output is correct |
| 70 |
Correct |
6 ms |
3024 KB |
Output is correct |
| 71 |
Partially correct |
96 ms |
3024 KB |
Partially correct - number of queries: 5233 |
| 72 |
Correct |
14 ms |
3020 KB |
Output is correct |
| 73 |
Partially correct |
131 ms |
3180 KB |
Partially correct - number of queries: 5170 |
| 74 |
Partially correct |
106 ms |
3180 KB |
Partially correct - number of queries: 5195 |
| 75 |
Correct |
7 ms |
3024 KB |
Output is correct |
| 76 |
Correct |
82 ms |
3308 KB |
Output is correct |
| 77 |
Partially correct |
110 ms |
3336 KB |
Partially correct - number of queries: 5204 |
| 78 |
Correct |
13 ms |
3024 KB |
Output is correct |
| 79 |
Correct |
45 ms |
3024 KB |
Output is correct |
| 80 |
Partially correct |
95 ms |
3044 KB |
Partially correct - number of queries: 5190 |
| 81 |
Partially correct |
91 ms |
3024 KB |
Partially correct - number of queries: 5193 |
| 82 |
Partially correct |
103 ms |
3280 KB |
Partially correct - number of queries: 5221 |
| 83 |
Correct |
9 ms |
3024 KB |
Output is correct |
| 84 |
Correct |
49 ms |
3228 KB |
Output is correct |
| 85 |
Partially correct |
95 ms |
3024 KB |
Partially correct - number of queries: 5175 |
| 86 |
Correct |
64 ms |
3172 KB |
Output is correct |
| 87 |
Correct |
10 ms |
3024 KB |
Output is correct |
| 88 |
Correct |
69 ms |
3208 KB |
Output is correct |
| 89 |
Correct |
26 ms |
3276 KB |
Output is correct |
| 90 |
Correct |
7 ms |
3024 KB |
Output is correct |
| 91 |
Correct |
34 ms |
3184 KB |
Output is correct |
| 92 |
Correct |
42 ms |
3024 KB |
Output is correct |
| 93 |
Correct |
80 ms |
3268 KB |
Output is correct |
| 94 |
Correct |
88 ms |
3260 KB |
Output is correct |
| 95 |
Correct |
88 ms |
3544 KB |
Output is correct |
| 96 |
Correct |
77 ms |
3208 KB |
Output is correct |
| 97 |
Correct |
67 ms |
3220 KB |
Output is correct |
