oj.uz

Submission #591669

# Submission time Handle Problem Language Result Execution time Memory
591669 2022-07-07T18:10:44 Z ogibogi2004 Quality Of Living (IOI10_quality) C++14
0 / 100
 64 ms 35624 KB 
#include "quality.h"
#include<bits/stdc++.h>
using namespace std;
const int MAXN=3001;
int table[MAXN][MAXN];
int t1[MAXN][MAXN];
int h,w,r,c;
bool check(int val)
{
    for(int i=0;i<MAXN;i++)
    {
        for(int j=0;j<MAXN;j++)
        {
            if(table[i][j]<=val)t1[i][j]=1;
        }
    }
    int cnt=0;
    for(int i=0;i<h;i++)
    {
        for(int j=0;j<w;j++)
        {
            if(t1[i][j])cnt++;
        }
    }
    if(cnt>h*w/2)return 1;
    int x=0,y=0;
    queue<char>q;
    for(int i=0;i<c-w;i++)q.push('R');
    q.push('D');
    for(int i=0;i<c-w;i++)q.push('L');
    q.push('D');
    while(x!=r-h||y!=c-w)
    {
        char dir=q.front();
        q.push(q.front());
        q.pop();
        if(dir=='R')
        {
            for(int i=x;i<x+h;i++)
            {
                if(t1[i][y]==1)cnt--;
                if(t1[i][y+w]==1)cnt++;
            }
            y++;
        }
        else if(dir=='L')
        {
            for(int i=x;i<x+h;i++)
            {
                if(t1[i][y+w-1]==1)cnt--;
                if(t1[i][y-1]==1)cnt++;
            }
            y--;
        }
        else if(dir=='D')
        {
            for(int j=y;j<y+w;j++)
            {
                if(t1[x][j]==1)cnt--;
                if(t1[x+h][j]==1)cnt++;
            }
            x++;
        }
        if(cnt>h*w/2)return 1;
    }
    return 0;
}
int rectangle(int R, int C, int H, int W, int Q[3001][3001]) {
    r=R;c=C;h=H;w=W;
    int low=1,high=R*C,mid,best;
    while(low<=high)
    {
        mid=(low+high)/2;
        if(check(mid))
        {
            best=mid;
            high=mid-1;
        }
        else low=mid+1;
    }
    return best;

}

Compilation message

quality.cpp: In function 'int rectangle(int, int, int, int, int (*)[3001])':
quality.cpp:81:12: warning: 'best' may be used uninitialized in this function [-Wmaybe-uninitialized]
   81 |     return best;
      |            ^~~~

Subtask #1
0 / 20.0

# Verdict Execution time Memory Grader output
1 Incorrect 64 ms 35624 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #2
0 / 20.0

# Verdict Execution time Memory Grader output
1 Incorrect 64 ms 35624 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #3
0 / 20.0

# Verdict Execution time Memory Grader output
1 Incorrect 64 ms 35624 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 20.0

# Verdict Execution time Memory Grader output
1 Incorrect 64 ms 35624 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 20.0

# Verdict Execution time Memory Grader output
1 Incorrect 64 ms 35624 KB Output isn't correct
2 Halted 0 ms 0 KB -