Submission #432760

# Submission time Handle Problem Language Result Execution time Memory
432760 2021-06-18T13:12:04 Z amunduzbaev Martian DNA (IOI16_dna) C++14
0 / 100
10 ms 396 KB
#include "dna.h"
#ifndef EVAL
#include "grader.cpp"
#endif
#include "bits/stdc++.h"
using namespace std;

#define sz(x) (int)x.size()

int n;

string make_str(int bit, int len){
	string ss;
	for(int i=0;i<len;i++) ss = ss + char(bit + '0');
	return ss;
}

bool ask(int bit, int len) { return make_test(make_str(bit, len)); }

string analyse(int N, int t) {
	n = N;
	int l = 1, r = n;
	int bit = 1;
	if(!make_test("1")) bit = 0;
	while(l < r){
		int m = (l + r + 1)>>1;
		if(ask(bit, m)) l = m;
		else r = m - 1;
	}
	
	int len = l;
	string ss;
	for(int i=0;i<len;i++) ss = ss + char(bit + '0'); 
	
	if(make_test(string(ss + char((bit ^ 1) + '0')))){
		int last = 0;
		ss += char((bit ^ 1) + '0');
		while(sz(ss) < n && last <= len){
			//~ cout<<string(ss + char((bit ^ 1) + '0'))<<"\n";
			if(make_test(string(ss + char((bit ^ 1) + '0')))) ss += char((bit ^ 1) + '0'), last = 0;
			else ss += char(bit + '0'), last++;
		}
		//~ cout<<ss<<"\n";
		while(ss.back() == char(bit + '0')) ss.pop_back();
		//~ cout<<ss<<"\n";
		int l = 0, r = len;
		while(l + 1 < r){
			int m = (l + r)>>1;
			if(make_test(string(ss + make_str(bit, m)))) r = m;
			else l = m+1;
		} if(make_test(string(ss + make_str(bit, r)))) ss += make_str(bit, r);
		else ss += make_str(bit, l);
	}
	//~ cout<<ss<<"\n";
	while(sz(ss) < n){
		if(make_test(string(char((bit ^ 1) + '0') + ss))) ss = char((bit ^ 1) + '0') + ss;
		else ss = char(bit + '0') + ss;
	} return ss;
}

Compilation message

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()) {
# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 0 ms 216 KB Output is correct
6 Correct 0 ms 204 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 0 ms 204 KB Output is correct
10 Correct 0 ms 204 KB Output is correct
11 Correct 0 ms 204 KB Output is correct
12 Correct 0 ms 204 KB Output is correct
13 Correct 0 ms 204 KB Output is correct
14 Correct 0 ms 204 KB Output is correct
15 Correct 0 ms 204 KB Output is correct
16 Correct 0 ms 204 KB Output is correct
17 Correct 1 ms 204 KB Output is correct
18 Correct 0 ms 204 KB Output is correct
19 Correct 0 ms 204 KB Output is correct
20 Correct 0 ms 204 KB Output is correct
21 Incorrect 1 ms 204 KB Wrong DNA
22 Correct 0 ms 204 KB Output is correct
23 Correct 1 ms 204 KB Output is correct
24 Incorrect 1 ms 204 KB Wrong DNA
# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 0 ms 204 KB Output is correct
7 Correct 0 ms 204 KB Output is correct
8 Correct 0 ms 204 KB Output is correct
9 Correct 0 ms 204 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 0 ms 204 KB Output is correct
12 Incorrect 0 ms 204 KB Wrong DNA
13 Incorrect 0 ms 204 KB Wrong DNA
14 Correct 0 ms 204 KB Output is correct
15 Incorrect 1 ms 204 KB Wrong DNA
16 Incorrect 0 ms 204 KB Wrong DNA
17 Incorrect 1 ms 204 KB Wrong DNA
18 Incorrect 1 ms 204 KB Wrong DNA
19 Incorrect 1 ms 204 KB Wrong DNA
20 Incorrect 1 ms 204 KB Wrong DNA
21 Incorrect 1 ms 204 KB Wrong DNA
22 Correct 1 ms 204 KB Output is correct
23 Correct 1 ms 204 KB Output is correct
24 Correct 0 ms 204 KB Output is correct
25 Correct 1 ms 204 KB Output is correct
26 Correct 1 ms 204 KB Output is correct
27 Correct 1 ms 204 KB Output is correct
28 Incorrect 1 ms 204 KB Wrong DNA
29 Correct 1 ms 204 KB Output is correct
30 Incorrect 1 ms 204 KB Wrong DNA
31 Incorrect 1 ms 204 KB Wrong DNA
32 Correct 1 ms 204 KB Output is correct
33 Correct 1 ms 204 KB Output is correct
34 Incorrect 1 ms 204 KB Wrong DNA
# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 0 ms 204 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 0 ms 204 KB Output is correct
9 Correct 0 ms 204 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 0 ms 204 KB Output is correct
12 Incorrect 1 ms 204 KB Wrong DNA
13 Correct 1 ms 220 KB Output is correct
14 Incorrect 0 ms 204 KB Wrong DNA
15 Correct 0 ms 204 KB Output is correct
16 Correct 1 ms 204 KB Output is correct
17 Incorrect 1 ms 204 KB Wrong DNA
18 Incorrect 1 ms 204 KB Wrong DNA
19 Incorrect 1 ms 204 KB Wrong DNA
20 Incorrect 1 ms 204 KB Wrong DNA
21 Incorrect 1 ms 204 KB Wrong DNA
22 Incorrect 9 ms 332 KB Wrong DNA
23 Incorrect 9 ms 332 KB Wrong DNA
24 Incorrect 9 ms 332 KB Wrong DNA
25 Incorrect 9 ms 392 KB Wrong DNA
26 Incorrect 10 ms 392 KB Wrong DNA
27 Correct 7 ms 332 KB Output is correct
28 Correct 8 ms 332 KB Output is correct
29 Correct 2 ms 332 KB Output is correct
30 Correct 2 ms 332 KB Output is correct
31 Correct 3 ms 332 KB Output is correct
32 Correct 6 ms 332 KB Output is correct
33 Incorrect 9 ms 372 KB Wrong DNA
34 Incorrect 10 ms 332 KB Wrong DNA
35 Incorrect 8 ms 388 KB Wrong DNA
36 Incorrect 9 ms 332 KB Wrong DNA
37 Incorrect 9 ms 396 KB Wrong DNA
38 Correct 6 ms 332 KB Output is correct
39 Incorrect 5 ms 332 KB Wrong DNA