我是看代码随想录的视频得到的思路,
原题如下:
我写的代码如下:
class Solution {
public:
vector<vector<int>> generateMatrix(int n) {
vector<vector<int>> matrix(n,vector<int>(n,0));
int startx = 0,starty = 0,offset=1;
int i=0,j=0;
int count=1;
int times = n/2;
while(times--){
i = startx;
j = starty;
for(j=starty;j<n-offset;++j)
matrix[startx][j]=count++;
for(i=startx;i<n-offset;++i)
matrix[i][j]=count++;
for(;j>starty;j--)
matrix[i][j]=count++;
for(;i>startx;i--)
matrix[i][j]=count++;
starty++; startx++;
offset++;
}
if(n%2==1)
matrix[times][times] = n*n;
return matrix;
}
};
报错如下: