Submission #1202567

#	Time	Username	Problem	Language	Result	Execution time	Memory
1202567		jahongir	Dango Maker (JOI18_dango_maker)	C++20	13 / 100	0 ms	328 KiB

dango_maker

#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
 
using namespace std;
using namespace __gnu_pbds;
 
template<typename T> using ordered_set = tree<T,null_type,less_equal<T>,rb_tree_tag,
					 tree_order_statistics_node_update>;
 
#define ll long long
#define pi pair<int,int>
#define vi vector<int>
#define pb push_back
#define all(a) a.begin(),a.end()


void solve(){
    int n,m; cin >> n >> m;
    int cnt = 0;
    vector<char> last(m,'B'), now(m);
    int ans = 0;
    for(int i = 0; i < n; i++){
        for(int j = 0; j < m; j++) cin >> now[j];
        for(int j = 0; j < m-2; j++){
            if(now[j]=='R' && now[j+1]=='G' && now[j+2]=='W'){
                ans++; now[j] = now[j+1] = now[j+2] = 'B';
            }
        }
        for(int j = 0; j < m; j++){
            if(now[j]=='W' && last[j]=='G')
                last[j] = 'B', ans++;
            else if(now[j]=='G' && last[j]=='R')
                last[j] = 'G';
            else if(now[j]=='R') last[j] = 'R';
            else last[j] = 'B';
        }
    }
    cout << ans << '\n';
}
 
 
signed main(){
    cin.tie(0)->sync_with_stdio(0);
    int t = 1;
    while(t--) solve();
}

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