結果

問題 No.2073 Concon Substrings (Swap Version)
ユーザー deuteridayo
提出日時 2023-12-02 23:30:02
言語 C++17
(gcc 13.3.0 + boost 1.87.0)
結果
AC  
実行時間 26 ms / 2,000 ms
コード長 3,407 bytes
コンパイル時間 4,484 ms
コンパイル使用メモリ 261,520 KB
最終ジャッジ日時 2025-02-18 06:23:31
ジャッジサーバーID
（参考情報） 		judge4 / judge5
このコードへのチャレンジ
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ファイルパターン 結果
sample AC * 5
other AC * 37
権限があれば一括ダウンロードができます

ソースコード

diff #
プレゼンテーションモードにする

·// Smartphone Coding
#include"bits/stdc++.h"
#include"atcoder/all"
using namespace std;
using namespace atcoder;
using lint = long long;
using ulint = unsigned long long;
using llint = __int128_t;
#define endl '\n'
int const INF = 1<<30;
lint const INF64 = 1LL<<61;
lint const mod107 = 1e9+7;
using mint107 = modint1000000007;
long const mod = 998244353;
using mint = modint998244353;
lint ceilDiv(lint a, lint b){if(a%b==0){return a/b;}
  if(a>=0){return (a/b)+1;}
  else{return -((-a)/b);}}
lint floorDiv(lint a, lint b){if(a%b==0){return a/b;}
  if(a>=0){return (a/b);}
  else{return -((-a)/b)-1;}}
lint Sqrt(lint x){lint upper = 1e9;lint lower = 0;while(upper - lower > 0){lint mid = (1+upper + lower)/2;if(mid * mid > x){upper = mid-1;}else{lower 
    = mid;}}return upper;}
lint gcd(lint a,lint b){if(a<b)swap(a,b);if(a%b==0)return b;else return gcd(b,a%b);}
lint lcm(lint a,lint b){return (a / gcd(a,b)) * b;}
lint chmin(vector<lint>&v){lint ans = INF64;for(lint i:v){ans = min(ans, i);}return ans;}
lint chmax(vector<lint>&v){lint ans = -INF64;for(lint i:v){ans = max(ans, i);}return ans;}
double dist(double x1, double y1, double x2, double y2){return sqrt(pow(x1-x2, 2) + pow(y1-y2,2));}
string toString(lint n){string ans = "";if(n == 0){ans += "0";}else{while(n > 0){int a = n%10;char b = '0' + a;string c = "";c += b;n /= 10;ans = c + 
    ans;}}return ans;}
string toString(lint n, lint k){string ans = toString(n);string tmp = "";while(ans.length() + tmp.length() < k){tmp += "0";}return tmp + ans;}
vector<lint>prime;void makePrime(lint n){prime.push_back(2);for(lint i=3;i<=n;i+=2){bool chk = true;for(lint j=0;j<prime.size() && prime[j]*prime[j] 
    <= i;j++){if(i % prime[j]==0){chk=false;break;}}if(chk)prime.push_back(i);}}
lint Kai[250001]; bool firstCallnCr = true; 
lint ncrmodp(lint n,lint r,lint p){ if(firstCallnCr){ Kai[0] = 1; for(int i=1;i<=250000;i++){ Kai[i] = Kai[i-1] * i; Kai[i] %= p;} firstCallnCr = 
    false;} if(n<0)return 0;
if(n < r)return 0;if(r<0)return 0;if(n==0)return 1;lint ans = Kai[n];lint tmp = (Kai[r] * Kai[n-r]) % p;for(lint i=1;i<=p-2;i*=2){if(i & p-2){ans *= 
    tmp;ans %= p;}tmp *= tmp;tmp %= p;}return ans;}
#define rep(i, n) for(int i = 0; i < n; i++)
#define repp(i, x, y) for(int i = x; i < y; i++)
#define vec vector
#define pb push_back
#define se second
#define fi first
#define al(x) x.begin(),x.end()
#define ral(x) x.rbegin(),x.rend()
using str=string;
template< typename T >
T extgcd(T a, T b, T &x, T &y) {
  T d = a;
  if(b != 0) {
    d = extgcd(b, a % b, y, x);
    y -= (a / b) * x;
  } else {
    x = 1;
    y = 0;
  }
  return d;
}
struct edge{
    int to;
    lint cost;
};
using graph = vector<vec<edge>>;
vec<lint>dijkstra(int s, graph& g){
    priority_queue<pair<lint,lint>>que;
    vec<lint> cost(g.size(),INF64);
    cost[s]=0;
    que.push({0,s});
    while(!que.empty()){
        auto q=que.top();
        que.pop();
        int v=q.second;
        for(auto e:g[v]){
            if(cost[e.to]>cost[v]+e.cost){
                cost[e.to]=cost[v]+e.cost;
                que.push({-cost[e.to],e.to});
            }
        }
    }
    return cost;
}
int main(){
    int n;cin>>n;
    string s;cin>>s;
    vec<vec<int>>C(3,vec<int>(3));
    string con="con";
    int ans=0;
    rep(i,3){
        rep(j,n){
            rep(k,3){
                if(s[j *3+i]==con[k]){
                    C[i][k]++;
                }
            }
        }
    }
    if(C[0][0]==n&&C[1][1]==n&&C[2][2]==n){cout<<n<<endl;return 0;
}
    rep(i,3){
        int m=INF;
        rep(k,3)m=min(m,C[(i+k)%3][k]);
        
        ans+=m;
    }
    ans=min(ans,n-1);
    
    cout<<ans;
}
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