Submission #945116

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
945116	2024-03-13T12:24:34 Z	Wansur	The Big Prize (IOI17_prize)	C++14	97.63 / 100	33 ms	8252 KB

prize

#include <bits/stdc++.h>
#define f first
#define s second
#define ent '\n'

typedef long long ll;
using namespace std;

struct asd{
    int a, b, w, ca, cb;
};

vector<int> ask(int i);
const string out[2]={"NO\n","YES\n"};
const ll dx[]={0,1,0,-1,-1,1,1,-1};
const ll dy[]={1,0,-1,0,-1,1,-1,1};
const int mod=998244353;
const int md=1e9+7;
const int mx=3e5+12;
const bool T=0;

vector<int> ans[mx];
int ma;

vector<int> Ask(int i){
    if(ans[i].size()>0){
        return ans[i];
    }
    ans[i]=ask(i);
    return ans[i];
}

int find(int l,int r,int x,int left,int right){
    if(!x || l>r)return -1;
    int mid=l+r>>1, cnt=0;
    for(int i=mid;i<=r;i++){
        auto a=ask(i);
        if(a[0]+a[1]<ma){
            if(a[0]+a[1]==0){
                return i;
            }
            cnt++;
        }
        else{
            int val=find(i+1, r, a[1] - right, a[0], right);
            if(val!=-1){
                return val;
            }
            return find(l, mid-1, a[0] - left - cnt, left, a[1] + cnt);
        }
    }
    return find(l, mid-1, x-cnt, left, right - cnt);
}

int find_best(int n){
    int pos=0, c=0;
    for(int i=0;i<478;i++){
        auto a=Ask(n-i-1);
        if(a[0]+a[1]==0){
            return n-i-1;
        }
        if(a[0]+a[1]>ma){
            ma=a[0]+a[1];
        }
        pos=i;
    }
    for(int i=0;i<=pos;i++){
        auto a=Ask(n-i-1);
        if(a[0]+a[1]!=ma){
            c++;
        }
    }
    return find(0, n-pos-2, ma - c, 0, c);
}

Compilation message

prize.cpp: In function 'int find(int, int, int, int, int)':
prize.cpp:35:14: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   35 |     int mid=l+r>>1, cnt=0;
      |             ~^~

Subtask #1

20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	4 ms	7732 KB	Output is correct
2	Correct	4 ms	8000 KB	Output is correct
3	Correct	4 ms	7752 KB	Output is correct
4	Correct	2 ms	7256 KB	Output is correct
5	Correct	5 ms	7488 KB	Output is correct
6	Correct	5 ms	7748 KB	Output is correct
7	Correct	4 ms	7492 KB	Output is correct
8	Correct	5 ms	7768 KB	Output is correct
9	Correct	5 ms	7748 KB	Output is correct
10	Correct	5 ms	7496 KB	Output is correct

Subtask #2

77.63 / 80.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	6 ms	7736 KB	Output is correct
2	Correct	4 ms	7744 KB	Output is correct
3	Correct	6 ms	7740 KB	Output is correct
4	Correct	2 ms	7512 KB	Output is correct
5	Correct	6 ms	7744 KB	Output is correct
6	Correct	4 ms	7740 KB	Output is correct
7	Correct	4 ms	8000 KB	Output is correct
8	Correct	4 ms	7744 KB	Output is correct
9	Correct	5 ms	7996 KB	Output is correct
10	Correct	5 ms	7488 KB	Output is correct
11	Correct	5 ms	7492 KB	Output is correct
12	Correct	8 ms	7740 KB	Output is correct
13	Correct	4 ms	7736 KB	Output is correct
14	Correct	7 ms	7492 KB	Output is correct
15	Correct	25 ms	7736 KB	Output is correct
16	Correct	8 ms	7776 KB	Output is correct
17	Correct	29 ms	7736 KB	Output is correct
18	Correct	5 ms	7492 KB	Output is correct
19	Correct	21 ms	7748 KB	Output is correct
20	Correct	14 ms	7748 KB	Output is correct
21	Correct	18 ms	7996 KB	Output is correct
22	Correct	20 ms	7488 KB	Output is correct
23	Correct	5 ms	7996 KB	Output is correct
24	Correct	6 ms	7744 KB	Output is correct
25	Correct	11 ms	7532 KB	Output is correct
26	Correct	11 ms	7744 KB	Output is correct
27	Correct	5 ms	7740 KB	Output is correct
28	Correct	4 ms	7740 KB	Output is correct
29	Correct	5 ms	7488 KB	Output is correct
30	Correct	3 ms	7520 KB	Output is correct
31	Correct	27 ms	7492 KB	Output is correct
32	Correct	4 ms	7744 KB	Output is correct
33	Correct	2 ms	7484 KB	Output is correct
34	Correct	18 ms	7744 KB	Output is correct
35	Correct	4 ms	7496 KB	Output is correct
36	Correct	23 ms	7528 KB	Output is correct
37	Correct	6 ms	7744 KB	Output is correct
38	Correct	5 ms	8252 KB	Output is correct
39	Correct	21 ms	7748 KB	Output is correct
40	Correct	4 ms	7744 KB	Output is correct
41	Correct	11 ms	7744 KB	Output is correct
42	Correct	12 ms	7740 KB	Output is correct
43	Correct	10 ms	7740 KB	Output is correct
44	Correct	19 ms	7748 KB	Output is correct
45	Correct	20 ms	7744 KB	Output is correct
46	Correct	24 ms	7492 KB	Output is correct
47	Correct	18 ms	7492 KB	Output is correct
48	Correct	10 ms	7740 KB	Output is correct
49	Correct	28 ms	7748 KB	Output is correct
50	Correct	3 ms	7744 KB	Output is correct
51	Correct	19 ms	7740 KB	Output is correct
52	Correct	21 ms	7488 KB	Output is correct
53	Correct	4 ms	7744 KB	Output is correct
54	Correct	18 ms	7744 KB	Output is correct
55	Correct	23 ms	7480 KB	Output is correct
56	Correct	3 ms	7740 KB	Output is correct
57	Correct	8 ms	7740 KB	Output is correct
58	Correct	10 ms	7996 KB	Output is correct
59	Correct	13 ms	7996 KB	Output is correct
60	Correct	12 ms	7748 KB	Output is correct
61	Correct	5 ms	7992 KB	Output is correct
62	Correct	4 ms	7748 KB	Output is correct
63	Correct	4 ms	7740 KB	Output is correct
64	Correct	4 ms	7776 KB	Output is correct
65	Correct	2 ms	7456 KB	Output is correct
66	Correct	2 ms	7256 KB	Output is correct
67	Correct	4 ms	7744 KB	Output is correct
68	Correct	5 ms	7748 KB	Output is correct
69	Correct	2 ms	7256 KB	Output is correct
70	Correct	3 ms	7740 KB	Output is correct
71	Partially correct	27 ms	7496 KB	Partially correct - number of queries: 5237
72	Correct	6 ms	7500 KB	Output is correct
73	Partially correct	30 ms	7740 KB	Partially correct - number of queries: 5174
74	Partially correct	30 ms	7512 KB	Partially correct - number of queries: 5201
75	Correct	4 ms	7492 KB	Output is correct
76	Correct	19 ms	7748 KB	Output is correct
77	Correct	22 ms	8244 KB	Output is correct
78	Correct	7 ms	8248 KB	Output is correct
79	Correct	12 ms	7740 KB	Output is correct
80	Correct	28 ms	7484 KB	Output is correct
81	Correct	33 ms	7996 KB	Output is correct
82	Correct	27 ms	7736 KB	Output is correct
83	Correct	5 ms	7736 KB	Output is correct
84	Correct	29 ms	7740 KB	Output is correct
85	Correct	33 ms	7740 KB	Output is correct
86	Correct	4 ms	7480 KB	Output is correct
87	Correct	4 ms	7740 KB	Output is correct
88	Correct	4 ms	7736 KB	Output is correct
89	Correct	5 ms	7740 KB	Output is correct
90	Correct	3 ms	7736 KB	Output is correct
91	Correct	4 ms	7740 KB	Output is correct
92	Correct	4 ms	7488 KB	Output is correct
93	Correct	5 ms	8000 KB	Output is correct
94	Correct	5 ms	7496 KB	Output is correct
95	Correct	6 ms	7744 KB	Output is correct
96	Correct	5 ms	8004 KB	Output is correct
97	Correct	4 ms	7748 KB	Output is correct