oj.uz

Submission #382063

# Submission time Handle Problem Language Result Execution time Memory
382063 2021-03-26T10:55:23 Z ritul_kr_singh Martian DNA (IOI16_dna) C++17
100 / 100
 15 ms 512 KB 
#include "dna.h"
#include "bits/stdc++.h"
using namespace std;
#define sp << " " <<
#define nl << "\n"
 
string create(string i, int j){
	string res;
	while(j--) res += i;
	return res;
}
 
string analyse(int n, int t){
	string ans;
	if(!make_test("1")){
		return create("0", n);
	}
 
	int low = 1, high = n;
	while(low<high){
		int mid = (low+high)/2;
		if(make_test(create("1", mid+1))) low = mid+1;
		else high = mid;
	}
  	ans = create("1", low);
 
	int prevOnes = high, maxOnes = high;
	bool backward = false;
	while(!(backward and ans.size()==n)){
		if(backward){
			if(make_test("0"+ans)) ans = "0"+ans;
			else ans = "1"+ans;
		}else{
			if(make_test(ans+"0")) ans += "0", prevOnes = 0;
			else{
				ans += "1";
				++prevOnes;
				if(prevOnes>maxOnes){ // found endpoint
					string temp; swap(temp, ans);
					for(int i=0; i+maxOnes+1<(int)temp.size(); ++i) ans.push_back(temp[i]);
 
 
					low = 0, high = maxOnes;
					while(low<high){
						int mid = (low+high)/2;
						if(make_test(ans+create("1", mid+1))) low = mid+1;
						else high = mid;
					}
					ans += create("1", low);
					backward = true;
				}
			}
		}
	}
	return ans;
}

Compilation message

dna.cpp: In function 'std::string analyse(int, int)':
dna.cpp:29:33: warning: comparison of integer expressions of different signedness: 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   29 |  while(!(backward and ans.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 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 1 ms 364 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 1 ms 364 KB Output is correct
15 Correct 1 ms 512 KB Output is correct
16 Correct 1 ms 364 KB Output is correct
17 Correct 1 ms 364 KB Output is correct
18 Correct 1 ms 364 KB Output is correct
19 Correct 1 ms 364 KB Output is correct
20 Correct 1 ms 364 KB Output is correct
21 Correct 1 ms 364 KB Output is correct
22 Correct 1 ms 364 KB Output is correct
23 Correct 1 ms 364 KB Output is correct
24 Correct 1 ms 364 KB Output is correct

Subtask #2
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 2 ms 364 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 1 ms 364 KB Output is correct
15 Correct 1 ms 364 KB Output is correct
16 Correct 1 ms 364 KB Output is correct
17 Correct 1 ms 364 KB Output is correct
18 Correct 1 ms 364 KB Output is correct
19 Correct 1 ms 364 KB Output is correct
20 Correct 1 ms 364 KB Output is correct
21 Correct 1 ms 364 KB Output is correct
22 Correct 1 ms 364 KB Output is correct
23 Correct 1 ms 364 KB Output is correct
24 Correct 1 ms 364 KB Output is correct
25 Correct 1 ms 388 KB Output is correct
26 Correct 2 ms 364 KB Output is correct
27 Correct 1 ms 364 KB Output is correct
28 Correct 1 ms 364 KB Output is correct
29 Correct 2 ms 364 KB Output is correct
30 Correct 1 ms 364 KB Output is correct
31 Correct 1 ms 364 KB Output is correct
32 Correct 1 ms 364 KB Output is correct
33 Correct 1 ms 364 KB Output is correct
34 Correct 1 ms 364 KB Output is correct

Subtask #3
64.0 / 64.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 2 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 1 ms 364 KB Output is correct
13 Correct 2 ms 364 KB Output is correct
14 Correct 1 ms 364 KB Output is correct
15 Correct 1 ms 364 KB Output is correct
16 Correct 1 ms 364 KB Output is correct
17 Correct 2 ms 364 KB Output is correct
18 Correct 1 ms 364 KB Output is correct
19 Correct 1 ms 364 KB Output is correct
20 Correct 1 ms 364 KB Output is correct
21 Correct 1 ms 364 KB Output is correct
22 Correct 12 ms 364 KB Output is correct
23 Correct 15 ms 364 KB Output is correct
24 Correct 15 ms 364 KB Output is correct
25 Correct 14 ms 436 KB Output is correct
26 Correct 14 ms 364 KB Output is correct
27 Correct 10 ms 364 KB Output is correct
28 Correct 9 ms 364 KB Output is correct
29 Correct 1 ms 364 KB Output is correct
30 Correct 2 ms 364 KB Output is correct
31 Correct 1 ms 364 KB Output is correct
32 Correct 8 ms 364 KB Output is correct
33 Correct 11 ms 364 KB Output is correct
34 Correct 13 ms 364 KB Output is correct
35 Correct 10 ms 364 KB Output is correct
36 Correct 12 ms 364 KB Output is correct
37 Correct 12 ms 364 KB Output is correct
38 Correct 7 ms 364 KB Output is correct
39 Correct 13 ms 364 KB Output is correct