#include "squarerect.h"
#include <bits/stdc++.h>
using namespace std;
bool am_i_square(int N, int Q) {
bool visited[100][100];
int i, j, tempi, tempj;
bool temp;
for (i = 1; i <100; i += 20){
for (j = 1; j < 100; j += 20){
if (inside_shape(i, j)){tempi = i; tempj = j;visited[i-1][j-1]=true;j=101;i=101;}
}
}
if (i == 101 && j == 101)return false;
i = tempi;
j = tempj;
int lo, hi, mid, len, len2;
lo = j - 19;
hi = j;
mid = (lo + hi)/ 2;
if (lo > 0){
while (lo <= mid && !(tempi == mid)){
tempi = mid;
temp = inside_shape(i, mid);
visited[i-1][mid-1] = temp;
if (temp)hi = mid;
else lo = mid;
mid = (lo + hi)/2;
}
}
else{
mid = j;
}
len = j - mid + (int)visited[i-1][mid-1];
lo = j + 19 - len;
hi = 101;
mid = (lo + hi)/2;
while (lo <= mid&& !(tempi == mid)){
tempi = mid;
temp = inside_shape(i, mid);
visited[i-1][mid-1] = temp;
if (!temp)hi = mid;
else {lo = mid;if(mid - j + len > 101 - max(1, i - 20))return false;}
mid = (lo + hi)/2;
}
len += mid - j + (int)visited[i-1][mid-1] - 1;
if (len < 20)return false;
lo = max(1, i - 19);
hi = i;
mid = (lo + hi) / 2;
temp = false;
while (lo <= mid&& !(tempi == mid)){
tempi = mid;
temp = inside_shape(mid, j);
visited[mid-1][j-1] = temp;
if (temp)hi = mid;
else {lo = mid;if(100 - mid < len)return false;}
mid = (lo + hi)/2;
}
len2 = i - mid + (int)visited[mid-1][j-1];
temp = inside_shape(i + len-len2, j);
if (!temp) return false;
if (((i + len - len2 == 100) && temp) || (temp && !inside_shape(i + len-len2 + 1, j)))return true;
return false;
}
Compilation message
squarerect.cpp: In function 'bool am_i_square(int, int)':
squarerect.cpp:24:23: warning: 'tempi' may be used uninitialized in this function [-Wmaybe-uninitialized]
24 | temp = inside_shape(i, mid);
| ~~~~~~~~~~~~^~~~~~~~
squarerect.cpp:35:10: warning: 'tempj' may be used uninitialized in this function [-Wmaybe-uninitialized]
35 | len = j - mid + (int)visited[i-1][mid-1];
| ~~^~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
296 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
1 ms |
340 KB |
Wrong Answer. |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
204 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
1 ms |
204 KB |
Wrong Answer. |
| 2 |
Halted |
0 ms |
0 KB |
- |
