Submission #1134690

#	Time	Username	Problem	Language	Result	Execution time	Memory
1134690		Almonther	Bob (COCI14_bob)	C++20	0 / 120	76 ms	31816 KiB

bob

#include <bits/stdc++.h>

#define ll long long
#define co cout<<
using namespace std;
//stuff

void solve(){
    ll n,m;
    cin>>n>>m;
    ll arr[n+5][m+5]={};
    ll left[n+5][m+5]={},right[n+5][m+5]={},up[n+5][m+5]={};
    for(int i=1;i<=n;i++){
        for(int j=1;j<=m;j++){
            cin>>arr[i][j];
        }
    }
    ll ans=0;
    for(int i=1;i<=n;i++){
        for(int j=1;j<=m;j++){
            if(arr[i][j]==arr[i-1][j]) up[i][j]=up[i-1][j]+1;
            else up[i][j]=1;
            if(arr[i][j]==arr[i][j-1]&&up[i][j]<up[i][j-1]) left[i][j]=left[i][j-1]+1;
            else left[i][j]=1;
        }
        for(int j=m;j>=1;j--){
            if(arr[i][j]==arr[i][j+1]&&up[i][j]<=up[i][j+1]) right[i][j]=right[i][j+1]+1;
            else right[i][j]=1;
            ans+=up[i][j]*left[i][j]*right[i][j];
        }
    }
    co ans;
}

int main(){
    ios::sync_with_stdio(0);cin.tie(0);cout.tie(0);
    int _=1;
    // cin>>_;
    while(_--) solve();
    return 0;
}

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