Submission #223928

#TimeUsernameProblemLanguageResultExecution timeMemory
223928a_playerWall (IOI14_wall)C++14
0 / 100
167 ms13944 KiB
#include <bits/stdc++.h>
#include "wall.h"

using namespace std;
#define fh finalHeight

const int nax=2e6+6;
const int inf=2e9;

int m[nax][2];
void buildWall(int n, int k, int op[], int left[], int right[], int height[], int finalHeight[]){
    for(int i=0;i<n;i++)m[i][0]=inf,m[i][1]=-inf;
        for(int i=0;i<k;i++){
            if(op[i]==1)
            for(int j=left[i];j<=right[i];j++)m[j][1]=max(m[j][1],height[j]);

            else for(int j=left[i];j<=right[i];j++)m[j][1]=min(m[j][1],height[j]),min(m[j][0],height[j]);
        }
        for(int i=0;i<n;i++)fh[i]=m[i][1];
}
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