Submission #1144365

#	Time	Username	Problem	Language	Result	Execution time	Memory
1144365		tnt	Dango Maker (JOI18_dango_maker)	C++20	13 / 100	1 ms	328 KiB

dango_maker

#include <bits/stdc++.h>
using namespace std;
//#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")
//#pragma GCC optimize("Ofast,unroll-loops,fast-math,O3")

#define pb push_back                    
#define ll long long
#define int long long
//#define sort(all(v)) sort(v.begin(),v.end())

int mod = 998244353;
const int N = 4e5 + 10;
const int inf = 1e9;
int fact[200001];
ll binpow(ll a, ll b){
 if(b == 0) return 1;
 else if(b % 2 == 1) return (a * binpow(a, b - 1)) % mod;
 ll p = binpow(a,b / 2);
 return (p * p) % mod;
}
signed main(){
    //freopen("mootube.in", "r", stdin);
    //freopen("mootube.out", "w", stdout);
    int n,m;
    cin >> n >> m;
    char a[n + 1][m + 1],a1[n + 1][m + 1];
    for(int i = 1; i <= n; i++){
        for(int j = 1; j <= m; j++){
            cin >> a[i][j];
            a1[i][j] = a[i][j];
        }   
    }
    if(n <= 2 && m <= 2){
        cout << 0;
        return 0;
    }
    int ans = 0;
    if(n <= 2 && m >= 3){
        int cnt = 0;
        for(int i = 1; i <= n; i++){
            if(a[i][1] == 'R' && a[i][2] == 'G' && a[i][3] == 'W')cnt++;
        }
        cout << cnt;
        return 0;
    }
    else if(n >=  3 && m <= 2){
        int cnt = 0;
        for(int i = 1; i <= n; i++){
            if(a[1][i] == 'R' && a[2][i] == 'G' && a[3][i] == 'W')cnt++;
        }   
        cout << cnt;
        return 0;
    }
    else if(n == 3 && m == 3){
        int cnt = 0,cnt1 = 0;
        for(int i = 1; i <= n; i++){
            if(a[i][1] == 'R' && a[i][2] == 'G' && a[i][3] == 'W')cnt++;
        }
        for(int i = 1; i <= n; i++){
            if(a[1][i] == 'R' && a[2][i] == 'G' && a[3][i] == 'W')cnt1++;
        } 
        cout << max(cnt,cnt1);
        return 0;
    }
    int f = 0;
    int cnt = 0;
    for(int i = 1; i <= n; i++){
        if(a[i][1] == 'R' && a[i][2] == 'G' && a[i][3] == 'W'){
            cnt++;
            a[i][1] = a[i][2] = a[i][3] = '%';
        }
        else if(m >= 4){
            if(a[i][2] == 'R' && a[i][3] == 'G' && a[i][4] == 'W'){
                cnt++;
                a[i][2] = a[i][3] = a[i][4] = '%';
            }
        }
    }
    for(int i = 1; i <= m; i++){
        if(a[1][i] == 'R' && a[2][i] == 'G' && a[3][i] == 'W'){
            cnt++;
            a[1][i] = a[2][i] = a[3][i] = '%';
        }
        else if(n >= 4){
            if(a[2][i] == 'R' && a[3][i] == 'G' && a[4][i] == 'W'){
                cnt++;
                a[2][i] = a[3][i] = a[4][i] = '%';
            }
        }
    }
    ans = max(cnt,ans);
    cnt = 0;
    for(int i = 1; i <= m; i++){
        if(a1[1][i] == 'R' && a1[2][i] == 'G' && a1[3][i] == 'W'){
            cnt++;
            a1[1][i] = a1[2][i] = a1[3][i] = '%';
        }
        else if(n >= 4){
            if(a1[2][i] == 'R' && a1[3][i] == 'G' && a1[4][i] == 'W'){
                cnt++;
                a1[2][i] = a1[3][i] = a1[4][i] = '%';
            }
        }
    }
    for(int i = 1; i <= n; i++){
        if(a1[i][1] == 'R' && a1[i][2] == 'G' && a1[i][3] == 'W'){
            cnt++;
            a1[i][1] = a1[i][2] = a1[i][3] = '%';
        }
        else if(m >= 4){
            if(a1[i][2] == 'R' && a1[i][3] == 'G' && a1[i][4] == 'W'){
                cnt++;
                a1[i][2] = a1[i][3] = a1[i][4] = '%';
            }
        }
    }
    ans = max(cnt,ans);
    cnt = 0;
    cout << ans;
}

• Subtask 1: 13 / 13
• Subtask 2: 0 / 20
• Subtask 3: 0 / 67