Submission #254707

#	Time	Username	Problem	Language	Result	Execution time	Memory
254707		egekabas	Dango Maker (JOI18_dango_maker)	C++14	13 / 100	1 ms	384 KiB

dango_maker

#include <bits/stdc++.h>
#define ff first
#define ss second
#define pb push_back
#define mp make_pair
using namespace std;
typedef long long ll;
typedef unsigned long long ull;
typedef long double ld;
typedef pair<ll, ll> pll;
typedef pair<ull, ull> pull;
typedef pair<int, int> pii;
typedef pair<ld, ld> pld;
int n, m;
int a[3009][3009];
int cl(int x, int y){
    return(a[x][y] == 1 && a[x][y+1] == 2 && a[x][y+2] == 3);
}
int cd(int x, int y){
    return(a[x][y] == 1 && a[x+1][y] == 2 && a[x+2][y] == 3);
}
vector<pii> v;
int sf(pii x, pii y){
    if(x.ff + x.ss != y.ff + y.ss)
        return x.ff + x.ss < y.ff + y.ss;
    return x.ss > y.ss;
}
int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    
    //freopen("in.txt", "r", stdin);
    //freopen("out.txt", "w", stdout);
    
    cin >> n >> m;
    string s;
    for(int i = 0; i < n; ++i){
        cin >> s;
        for(int j = 0; j < m; ++j){
            if(s[j] == 'R')
                a[i][j] = 1;
            else if(s[j] == 'G')
                a[i][j] = 2;
            else
                a[i][j] = 3;
            v.pb({i, j});
        }
    }
    sort(v.begin(), v.end(), sf);
    int ans = 0;
    for(auto u : v){
        int i = u.ff;
        int j = u.ss;
        if(cd(i, j)){
            ++ans;
            a[i][j] = a[i+1][j] = a[i+2][j] = 0;
        }
        if(cl(i, j)){
            ++ans;
            a[i][j] = a[i][j+1] = a[i][j+2] = 0;
        }
        
    }        
    cout << ans << '\n';
}

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