Submission #728015

#	Time	Username	Problem	Language	Result	Execution time	Memory
728015		shadow_sami	Mutating DNA (IOI21_dna)	C++17	100 / 100	56 ms	13508 KiB

dna

#include<bits/stdc++.h>
#include "dna.h"
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace __gnu_pbds;
using namespace std;
typedef long long int ll;
typedef vector<ll> vi;
typedef vector<vector<ll>> vvi;
typedef pair<ll,ll> pi;
typedef map<ll,ll> mi;
typedef long double ld;
typedef vector<ld> vd;
typedef vector<vector<ld>> vvd;
typedef pair<ld,ld> pd;
#define ff first
#define ss second
#define srt(a) sort(a.begin(),a.end());
#define fip(k, n) for (ll i = k; i < n; i++)
#define fjp(k, n) for (ll j = k; j < n; j++)
#define fin(k, n) for (ll i = k; i >= n; i--)
#define fjn(k, n) for (ll j = k; j >= n; j--)
#define fp(k, n, m) for (ll k = n; k < m; k++)
#define fn(k, n, m) for (ll k = n; k >= m; k--)
#define ordered_set tree<pi, null_type,less< pi >, rb_tree_tag,tree_order_statistics_node_update>
#define totalOne(n) __builtin_popcount(n)
#define backZero(n) __builtin_ctzll(n)
#define frontZero(n) __builtin_clzll(n)
#define fx(k) for ( auto x : k )
#define test ll t;cin >> t;while (t--)
#define nli "\n"

// ==========================(debug)============================================================================================== //

#ifndef ONLINE_JUDGE
#define debug(x) cerr << #x <<" "; _printn(x); cerr << nli;
#else
#define debug(x)
#endif

void _printn(ll x){ cerr<<x<<" "; }
void _printn(int x){ cerr<<x<<" "; }
void _printn(ld x){ cerr<<x<<" "; }
void _printn(double x){ cerr<<x<<" "; }
void _printn(string x){ cerr<<x<<" "; }
void _printn(char x){ cerr<<x<<" "; }
void _printn(bool x){ cerr<<x<<" "; }
template<class T,class V>void _printn(pair<T,V> vv);
template<class T> void _printn(vector<T> vv);
template<class T> void _printn(set<T> vv);
template<class T,class V> void _printn(map<T,V> vv);
template<class T> void _printn(multiset<T> vv);
template<class T,class V>void _printn(pair<T,V> vv){ cerr<<"( ";_printn(vv.ff);cerr<<",";_printn(vv.ss);cerr<<")";}
template<class T> void _printn(vector<T> vv){ cerr<<"[ "; for(auto xx:vv){ _printn(xx);cerr<<" "; } cerr<<"]"; };
template<class T> void _printn(set<T> vv){ cerr<<"{ "; for(auto xx:vv){ _printn(xx);cerr<<" "; } cerr<<"}"; };
template<class T> void _printn(multiset<T> vv){ cerr<<"{ "; for(auto xx:vv){ _printn(xx);cerr<<" "; } cerr<<"}"; };
template<class T,class V> void _printn(map<T,V> vv){ cerr<<"{ "; for(auto xx:vv){ _printn(xx);cerr<<" "; } cerr<<"}"; };

// ==========================(debug)============================================================================================== //

ll n,m,tp,tp2,res,sum,tptp;
const ll mx = 1e5+5;
const ll mod = 1e9+7;

// ==========================(MOD)=============================================================================================== //

ll mod_add(ll aa,ll bb){ return ((aa%mod)+(bb%mod))%mod; }
ll mod_minus(ll aa,ll bb){ return (((aa%mod)-(bb%mod))+10*mod)%mod; }
ll mod_mul(ll aa,ll bb){ return ((aa%mod)*(bb%mod))%mod; }
ll mod_power(ll aa,ll bb){ aa%=mod; ll empowered = 1; bb%=mod-1; while(bb > 0){ if(bb & 1) empowered = mod_mul(empowered,aa); bb = bb >> 1; aa = mod_mul(aa,aa); } return empowered; }
ll mod_divi(ll aa,ll bb){ aa=mod_mul(aa,mod_power(bb,mod-2)); return aa; }

// ==========================(MOD)=============================================================================================== //

bool f = false;
string k1,k2;
ll cnt[2][mx][3];
ll fun[mx][6];
unordered_map<char,ll> hashe;

void init(string a, string b){
	hashe['T'] = 0;
	hashe['A'] = 1;
	hashe['C'] = 2;
	k1 = a;
	k2 = b;
	memset(cnt,0ll,sizeof(cnt));
	memset(fun,0ll,sizeof(fun));
	n = k1.size();
	fip(0,n){
		fjp(0,3){
			cnt[0][i+1][j] = cnt[0][i][j] + (hashe[k1[i]]==j);
			cnt[1][i+1][j] = cnt[1][i][j] + (hashe[k2[i]]==j);
		}
		fjp(0,6){
			fun[i+1][j] = fun[i][j];
		}
		if(k1[i]=='T' && k2[i]=='A')
			fun[i+1][0]++;
		else if(k1[i]=='A' && k2[i]=='T')
			fun[i+1][3]++;
		else if(k1[i]=='T' && k2[i]=='C')
			fun[i+1][1]++;
		else if(k1[i]=='C' && k2[i]=='T')
			fun[i+1][4]++;
		else if(k1[i]=='C' && k2[i]=='A')
			fun[i+1][2]++;
		else if(k1[i]=='A' && k2[i]=='C')
			fun[i+1][5]++;
	}
	return;
}

int get_distance(int xx,int yy){
	xx++,yy++;
	fip(0,3){
		ll tp1 = cnt[0][yy][i] - cnt[0][xx-1][i];
		ll tp2 = cnt[1][yy][i] - cnt[1][xx-1][i];
		// debug(tp1);
		// debug(tp2);
		if(tp1 != tp2)
			return -1;
	}
	int ans = 0;
	int tn=0,kc;
	fip(0,3){
		ll tp1 = fun[yy][i] - fun[xx-1][i];
		ll tp2 = fun[yy][i+3] - fun[xx-1][3+i];
		ans += min(tp1,tp2);
		kc = max(tp1,tp2) - min(tp1,tp2);
		tn += kc;
	}
	ans += (tn / 3) * 2;
	return ans;
}

// int main(){
//     ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0);
//     #ifndef ONLINE_JUDGE
//         freopen("input1.txt", "r", stdin);
//         freopen("output1.txt", "w", stdout);
//         freopen("error1.txt", "w", stderr);
//     #endif // ONLINE_JUDGE

//         cin>>n>>m;
//         cin>>k1>>k2;
//         ll sr,de;
//         init(k1,k2);
//         while(m--){
//         	cin>>sr>>de;
//         	cout<<get_distance(sr,de)<<nli;
//         }
        
//     cerr << "Time elapsed: " << setprecision(6) << 1000.0 * clock() / CLOCKS_PER_SEC << "ms\n";
//     return 0;
// }

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