Submission #491265

#	Time	Username	Problem	Language	Result	Execution time	Memory
491265		ktkerem	Zoo (COCI19_zoo)	C++17	110 / 110	51 ms	10256 KiB

zoo

#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef unsigned long long ull;
ll _i=0;
#define ffn(x) _i=x
#define llll pair<ll , ll>
#define stitr set<llll>::iterator
#define fora(y,x) for(ll y=_i;x>y;y++)
#define pb push_back
#define pf push_front
#define debu cout << "hello\n"
#define fi first
#define sec second
const ll limit = 1e9+7; 
const ll ous=1e5 + 5;
const ll dx[4] = {1 , -1 , 0 , 0} , dy[4] = {0,0,-1,1};
ll vis[1005][1005];
void solve(){
    ll n ,m ;cin >> n >> m;
    string h[n];
    fora(i,n){
        cin >> h[i];
    }
    ll ans = 0;
    stack<llll> st;
    st.push({(n-1) , (m-1)});
    while(!st.empty()){
        vector<llll> ko;
        ans++;
        char  o = h[st.top().fi][st.top().sec];
        while(!st.empty()){
            llll a= st.top();
            st.pop();
            vis[a.fi][a.sec] = 1;
            fora(i , 4){
                if(n>a.fi + dx[i] && 0<= a.fi + dx[i] && m> a.sec + dy[i] && 0 <= a.sec + dy[i] && vis[a.fi + dx[i]][a.sec + dy[i]] == 0 && h[a.fi + dx[i]][a.sec + dy[i]] != '*'){
                    if(h[a.fi + dx[i]][a.sec + dy[i]] != o){
                        ko.pb({a.fi + dx[i] , a.sec + dy[i]});
                        vis[a.fi + dx[i]][a.sec + dy[i]] = 2;
                    }
                    else{
                        vis[a.fi + dx[i]][a.sec + dy[i]] = 1;
                        st.push({a.fi + dx[i] , a.sec + dy[i]});   
                    }
                }
            }
        }
        fora(i , ko.size()){
            st.push({ko[i].fi , ko[i].sec});
        }
    }
    cout << ans << "\n";
    return;
}
int main(){
    ios_base::sync_with_stdio(false);cin.tie(NULL);
    ll t=1;
    //cin >> t;
    while(t--){
        solve();
    }
    return 0; 
} 

Compilation message (stderr)

zoo.cpp: In function 'void solve()':
zoo.cpp:9:32: warning: comparison of integer expressions of different signedness: 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} and 'll' {aka 'long long int'} [-Wsign-compare]
    9 | #define fora(y,x) for(ll y=_i;x>y;y++)
......
   49 |         fora(i , ko.size()){
      |                                 
zoo.cpp:49:9: note: in expansion of macro 'fora'
   49 |         fora(i , ko.size()){
      |         ^~~~

• Subtask 1: 45 / 45
• Subtask 2: 65 / 65