Submission #480831

#	Time	Username	Problem	Language	Result	Execution time	Memory
480831		PoPularPlusPlus	DNA 돌연변이 (IOI21_dna)	C++17	0 / 100	32 ms	3140 KiB

dna

#include "dna.h"
#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define ull unsigned long long 
#define pb(e) push_back(e)
#define sv(a) sort(a.begin(),a.end())
#define sa(a,n) sort(a,a+n)
#define mp(a,b) make_pair(a,b)
#define vf first
#define vs second
#define ar array
#define all(x) x.begin(),x.end()
const int inf = 0x3f3f3f3f;
const int mod = 1000000007; 
const double PI=3.14159265358979323846264338327950288419716939937510582097494459230;
bool remender(ll a , ll b){return a%b;}

const int N = 100002;

string a,b;

int cnt[N] , cnt1[N];

bool b1;

void init(std::string aa, std::string bb) {
	a = aa;
	b = bb;
	b1 = 1;
	int n = a.size();
	for(int i = 0; i < n; i++){
		if(a[i]=='C' || b[i]=='C')b1 = 0;
	}
	for(int i = 0; i < n; i++){
		cnt[i] = 0;
		cnt1[i] = 0;
		if(i){cnt[i] = cnt[i-1];cnt1[i] = cnt1[i-1];}
		if(a[i] != b[i]){
			if(a[i] == 'A')cnt[i]++;
			else cnt1[i]++;
		}
	}
}

int get_distance(int x, int y) {
	if(b1 == 0){
	int n1 = 0 , n2 = 0 , n3 = 0;
	int t1 = 0, t2 = 0, t3 = 0;
	for(int i = x; i <= y; i++){
		if(a[i]!=b[i]){
			if(a[i] == 'A')t1++;
			else if(a[i] == 'T')t2++;
			else t3++;
			if(b[i] == 'A')n1++;
			else if(b[i] == 'T')n2++;
			else n3++;
		}
	}
	if(n1 == t1 && n2 == t2 && n3 == t3){
		int c = n1 + n2 + n3;
		if(c == 3)return 2;
		if(c == 0)return 0;
		return 1;
	}
	return -1;
}
int ans = cnt[y];
		int ans1 = cnt1[y];
		if(x-1 >= 0){ans -= cnt[x-1];ans1-=cnt1[x-1];}
		if(ans == ans1){
			return ans;
		}
		else return -1;
}

• Subtask 1: 0 / 21
• Subtask 2: 0 / 22
• Subtask 3: 0 / 13
• Subtask 4: 0 / 28
• Subtask 5: 0 / 16