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55 lines (49 loc) · 1.02 KB
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kthElementInspiralMatrix.cpp
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55 lines (49 loc) · 1.02 KB
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int top=0;
int bottom=n-1;
int left=0;
int right=m-1;
int cnt=0;
while(top<=bottom && left<=right)
{
for(int i=left;i<=right;i++)
{
cnt++;
if(cnt==k)
{
return a[top][i];
}
}
top++;
for(int i=top ;i<=bottom ;i++)
{
cnt++;
if(cnt==k)
{
return a[i][right];
}
}
right--;
if(top<=bottom){
for(int i=right;i>=left;i--)
{
cnt++;
if(cnt==k)
{
return a[bottom][i];
}
}
bottom--;
}
if(left<=right){
for(int i=bottom;i>=top;i--)
{
cnt++;
if(cnt==k)
{
return a[i][left];
}
}
left++;
}
}
return 0;