oj.uz

Submission #1061206

# Submission time Handle Problem Language Result Execution time Memory
1061206 2024-08-16T07:14:17 Z boyliguanhan Martian DNA (IOI16_dna) C++17
100 / 100
 6 ms 520 KB 
#include "dna.h"
#include <bits/stdc++.h>
using namespace std;
mt19937 rng(2893478);
int bad_streak;
string analyse(int n, int t) {
    string str="1";
    while(1){
        char c='0'+rng()%2;
        char oth=(c=='0'?'1':'0');
        if(make_test(str+c))
            str+=c,bad_streak=0;
        else str+=oth,
            bad_streak++;
        if(bad_streak==18){
            if(make_test(str))continue;
            int l=str.size()-18,r=str.size()-1,res=str.size()-1;
            while(l<=r){
                int mid=l+r>>1;
                if(make_test(str.substr(0,mid)))
                    l=mid+1;
                else res=mid,r=mid-1;
            }
            str.erase(str.begin()+res-1,str.end());
            break;
        }
    }
    while(str.size()<n){
        char c='0'+rng()%2;
        char oth=(c=='0'?'1':'0');
        if(make_test(c+str))
            str=c+str;
        else str=oth+str;
    }
    return str;
}

Compilation message

dna.cpp: In function 'std::string analyse(int, int)':
dna.cpp:19:26: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   19 |                 int mid=l+r>>1;
      |                         ~^~
dna.cpp:28:21: warning: comparison of integer expressions of different signedness: 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   28 |     while(str.size()<n){
      |           ~~~~~~~~~~^~
grader.cpp: In function 'bool make_test(std::string)':
grader.cpp:14:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   14 |  for (int i = 0; i < p.size(); i++) {
      |                  ~~^~~~~~~~~~
grader.cpp:23:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   23 |  for (int i = 1; i <= ss.size(); i++) {
      |                  ~~^~~~~~~~~~~~
grader.cpp:28:13: warning: comparison of integer expressions of different signedness: '__gnu_cxx::__alloc_traits<std::allocator<int>, int>::value_type' {aka 'int'} and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   28 |   if (pr[i] == p.size()) {

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 1 ms 344 KB Output is correct
16 Correct 0 ms 344 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 0 ms 348 KB Output is correct
24 Correct 0 ms 348 KB Output is correct

Subtask #2
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 344 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 0 ms 348 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Correct 1 ms 344 KB Output is correct
26 Correct 1 ms 348 KB Output is correct
27 Correct 0 ms 348 KB Output is correct
28 Correct 0 ms 348 KB Output is correct
29 Correct 0 ms 348 KB Output is correct
30 Correct 0 ms 348 KB Output is correct
31 Correct 1 ms 348 KB Output is correct
32 Correct 0 ms 348 KB Output is correct
33 Correct 0 ms 348 KB Output is correct
34 Correct 0 ms 348 KB Output is correct

Subtask #3
64.0 / 64.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 344 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 1 ms 348 KB Output is correct
22 Correct 6 ms 348 KB Output is correct
23 Correct 5 ms 348 KB Output is correct
24 Correct 4 ms 348 KB Output is correct
25 Correct 6 ms 348 KB Output is correct
26 Correct 4 ms 348 KB Output is correct
27 Correct 3 ms 520 KB Output is correct
28 Correct 3 ms 344 KB Output is correct
29 Correct 4 ms 456 KB Output is correct
30 Correct 4 ms 492 KB Output is correct
31 Correct 4 ms 348 KB Output is correct
32 Correct 3 ms 348 KB Output is correct
33 Correct 3 ms 348 KB Output is correct
34 Correct 3 ms 348 KB Output is correct
35 Correct 3 ms 348 KB Output is correct
36 Correct 4 ms 348 KB Output is correct
37 Correct 4 ms 348 KB Output is correct
38 Correct 4 ms 348 KB Output is correct
39 Correct 4 ms 504 KB Output is correct