oj.uz

Submission #482933

# Submission time Handle Problem Language Result Execution time Memory
482933 2021-10-26T21:04:16 Z gmyu Combo (IOI18_combo) C++14
97 / 100
 37 ms 568 KB 
/*
ID: USACO_template
LANG: C++
PROG: https://oj.uz/problem/view/IOI18_combo
*/
#include <iostream>  //cin , cout
#include <fstream>   //fin, fout
#include <stdio.h>   // scanf , pringf
#include <cstdio>
#include <algorithm> // sort , stuff
#include <stack>     // stacks
#include <queue>     // queues
#include <map>
#include <string>
#include <string.h>
#include <set>

using namespace std;

typedef pair<int, int>          pii;
typedef vector<int>             vi;     /// adjlist without weight
typedef vector<pii>             vii;    /// adjlist with weight
typedef vector<pair<int,pii>>   vpip;   /// edge with weight
typedef long long               ll;

#define mp  make_pair
#define ff  first
#define ss  second
#define pb  push_back
#define sz(x)   (int)(x).size()

const int MOD = 1e9+7;  // 998244353;
const int MX  = 2e5+5;   //
const ll  INF = 1e18;    //

#define MAXV 300007
#define MAXE 100007


bool debug= false;


#include "combo.h"
string guess_sequence(int N) {
    string s = "";
    vector<string> b = {"A", "B", "X", "Y"};

    // find the starting char first
    if(press(b[0]+b[1])>0) {    // AB or A
        if(press(b[0])>0) {
            // A
        } else {    //B
            swap(b[0], b[1]);
        }
    } else if(press(b[2])>0) {  // X
        swap(b[0], b[2]);
    } else {
        swap(b[0], b[3]);
    }
    s += b[0];

    // special case
    if(N==1) return s;

    // build s one by one. case: ABA = +1, AC*A = +2, or AD*A = +0
    for(int len=2;len<=N-1; len++) {
        string cmd = s+b[1] + s+b[2]+b[1] + s+b[2]+b[2] + s+b[2]+b[3];
        int p = press(cmd);
        if(p == sz(s)+1) s += b[1];
        else if(p == sz(s)+2) s += b[2];
        else s += b[3];
    }

    // last char
    for(int i=1; i<4; i++)
        if(press(s+b[i])==N) {
            s += b[i]; break;
        }

    return s;
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 200 KB Output is correct
2 Correct 0 ms 200 KB Output is correct
3 Correct 1 ms 200 KB Output is correct
4 Correct 0 ms 200 KB Output is correct
5 Correct 1 ms 200 KB Output is correct
6 Correct 1 ms 200 KB Output is correct
7 Correct 0 ms 200 KB Output is correct
8 Correct 0 ms 200 KB Output is correct
9 Correct 1 ms 200 KB Output is correct
10 Correct 0 ms 200 KB Output is correct
11 Correct 1 ms 200 KB Output is correct
12 Correct 1 ms 200 KB Output is correct
13 Correct 1 ms 200 KB Output is correct
14 Correct 1 ms 200 KB Output is correct
15 Correct 0 ms 200 KB Output is correct
16 Correct 1 ms 200 KB Output is correct
17 Correct 1 ms 200 KB Output is correct
18 Correct 0 ms 200 KB Output is correct
19 Correct 0 ms 200 KB Output is correct
20 Correct 0 ms 200 KB Output is correct
21 Correct 0 ms 200 KB Output is correct
22 Correct 1 ms 200 KB Output is correct
23 Correct 0 ms 200 KB Output is correct
24 Correct 1 ms 200 KB Output is correct
25 Correct 1 ms 200 KB Output is correct
26 Correct 0 ms 200 KB Output is correct
27 Correct 0 ms 200 KB Output is correct
28 Correct 0 ms 200 KB Output is correct
29 Correct 0 ms 200 KB Output is correct
30 Correct 1 ms 200 KB Output is correct
31 Correct 0 ms 200 KB Output is correct
32 Correct 0 ms 200 KB Output is correct
33 Correct 0 ms 200 KB Output is correct
34 Correct 0 ms 200 KB Output is correct
35 Correct 0 ms 200 KB Output is correct
36 Correct 0 ms 200 KB Output is correct

Subtask #2
92.0 / 95.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 200 KB Output is correct
2 Correct 1 ms 328 KB Output is correct
3 Correct 0 ms 200 KB Output is correct
4 Correct 0 ms 200 KB Output is correct
5 Correct 1 ms 200 KB Output is correct
6 Correct 1 ms 200 KB Output is correct
7 Partially correct 0 ms 200 KB Output is partially correct
8 Correct 1 ms 200 KB Output is correct
9 Correct 1 ms 200 KB Output is correct
10 Partially correct 1 ms 200 KB Output is partially correct
11 Correct 0 ms 200 KB Output is correct
12 Correct 0 ms 200 KB Output is correct
13 Partially correct 0 ms 200 KB Output is partially correct
14 Partially correct 0 ms 200 KB Output is partially correct
15 Correct 0 ms 200 KB Output is correct
16 Correct 0 ms 200 KB Output is correct
17 Partially correct 37 ms 460 KB Output is partially correct
18 Correct 23 ms 340 KB Output is correct
19 Correct 26 ms 348 KB Output is correct
20 Correct 19 ms 368 KB Output is correct
21 Correct 24 ms 344 KB Output is correct
22 Correct 0 ms 200 KB Output is correct
23 Correct 1 ms 320 KB Output is correct
24 Correct 1 ms 200 KB Output is correct
25 Correct 1 ms 200 KB Output is correct
26 Correct 1 ms 200 KB Output is correct
27 Correct 3 ms 200 KB Output is correct
28 Correct 2 ms 296 KB Output is correct
29 Partially correct 1 ms 324 KB Output is partially correct
30 Partially correct 2 ms 328 KB Output is partially correct
31 Correct 3 ms 312 KB Output is correct
32 Correct 26 ms 340 KB Output is correct
33 Partially correct 27 ms 344 KB Output is partially correct
34 Partially correct 28 ms 428 KB Output is partially correct
35 Correct 21 ms 468 KB Output is correct
36 Correct 28 ms 340 KB Output is correct
37 Correct 18 ms 456 KB Output is correct
38 Correct 13 ms 344 KB Output is correct
39 Partially correct 28 ms 552 KB Output is partially correct
40 Correct 21 ms 452 KB Output is correct
41 Partially correct 26 ms 360 KB Output is partially correct
42 Partially correct 29 ms 344 KB Output is partially correct
43 Correct 17 ms 460 KB Output is correct
44 Correct 30 ms 468 KB Output is correct
45 Partially correct 20 ms 456 KB Output is partially correct
46 Correct 26 ms 512 KB Output is correct
47 Partially correct 12 ms 344 KB Output is partially correct
48 Correct 32 ms 456 KB Output is correct
49 Correct 24 ms 404 KB Output is correct
50 Correct 27 ms 340 KB Output is correct
51 Correct 22 ms 340 KB Output is correct
52 Partially correct 24 ms 412 KB Output is partially correct
53 Correct 31 ms 340 KB Output is correct
54 Correct 33 ms 472 KB Output is correct
55 Correct 27 ms 444 KB Output is correct
56 Correct 26 ms 340 KB Output is correct
57 Partially correct 17 ms 352 KB Output is partially correct
58 Correct 27 ms 352 KB Output is correct
59 Correct 26 ms 340 KB Output is correct
60 Correct 29 ms 348 KB Output is correct
61 Correct 28 ms 344 KB Output is correct
62 Partially correct 29 ms 384 KB Output is partially correct
63 Partially correct 32 ms 516 KB Output is partially correct
64 Partially correct 17 ms 452 KB Output is partially correct
65 Correct 20 ms 340 KB Output is correct
66 Partially correct 28 ms 456 KB Output is partially correct
67 Correct 21 ms 436 KB Output is correct
68 Partially correct 14 ms 340 KB Output is partially correct
69 Partially correct 28 ms 568 KB Output is partially correct
70 Partially correct 27 ms 484 KB Output is partially correct
71 Partially correct 30 ms 348 KB Output is partially correct
72 Correct 36 ms 448 KB Output is correct
73 Correct 28 ms 520 KB Output is correct
74 Correct 24 ms 344 KB Output is correct
75 Correct 29 ms 492 KB Output is correct
76 Partially correct 28 ms 356 KB Output is partially correct
77 Partially correct 28 ms 340 KB Output is partially correct
78 Correct 0 ms 200 KB Output is correct
79 Correct 1 ms 200 KB Output is correct
80 Partially correct 1 ms 200 KB Output is partially correct
81 Partially correct 1 ms 200 KB Output is partially correct
82 Correct 1 ms 200 KB Output is correct
83 Correct 1 ms 200 KB Output is correct
84 Partially correct 1 ms 200 KB Output is partially correct
85 Correct 1 ms 200 KB Output is correct
86 Partially correct 1 ms 200 KB Output is partially correct
87 Correct 1 ms 200 KB Output is correct
88 Correct 0 ms 200 KB Output is correct
89 Correct 1 ms 200 KB Output is correct
90 Correct 1 ms 200 KB Output is correct
91 Partially correct 1 ms 200 KB Output is partially correct
92 Correct 1 ms 200 KB Output is correct
93 Correct 1 ms 292 KB Output is correct
94 Correct 1 ms 200 KB Output is correct
95 Correct 1 ms 200 KB Output is correct
96 Correct 1 ms 200 KB Output is correct
97 Partially correct 1 ms 200 KB Output is partially correct
98 Partially correct 1 ms 200 KB Output is partially correct
99 Correct 2 ms 300 KB Output is correct
100 Correct 1 ms 200 KB Output is correct
101 Correct 1 ms 296 KB Output is correct
102 Correct 1 ms 292 KB Output is correct
103 Partially correct 1 ms 200 KB Output is partially correct
104 Correct 1 ms 200 KB Output is correct
105 Correct 1 ms 200 KB Output is correct
106 Correct 1 ms 200 KB Output is correct
107 Correct 1 ms 200 KB Output is correct
108 Partially correct 1 ms 200 KB Output is partially correct
109 Partially correct 0 ms 200 KB Output is partially correct
110 Partially correct 0 ms 200 KB Output is partially correct
111 Correct 0 ms 200 KB Output is correct
112 Partially correct 0 ms 200 KB Output is partially correct
113 Correct 0 ms 200 KB Output is correct
114 Correct 1 ms 200 KB Output is correct
115 Correct 1 ms 200 KB Output is correct
116 Correct 1 ms 200 KB Output is correct
117 Partially correct 1 ms 200 KB Output is partially correct
118 Correct 1 ms 200 KB Output is correct
119 Correct 1 ms 200 KB Output is correct
120 Correct 1 ms 200 KB Output is correct
121 Correct 1 ms 200 KB Output is correct
122 Correct 1 ms 200 KB Output is correct
123 Correct 1 ms 200 KB Output is correct