题解 | #蛇形矩阵#
蛇形矩阵
https://www.nowcoder.com/practice/649b210ef44446e3b1cd1be6fa4cab5e
#include <iostream>
#include <vector>
using namespace std;
int main() {
int N;
cin >> N;
vector<vector<int>> res(N, vector<int>(N));
int num = 1;
for (int i = 0; i < N; i++) {
int j = i;
for (int k = 0; j >= 0 && k < N; k++, j--) {
res[j][k] = num;
num++;
}
}
for (int i = 0; i < N; i++) {
for (int j = 0; j < N - i; j++) {
cout << res[i][j] << " ";
}
cout << endl;
}
}
// 64 位输出请用 printf("%lld")
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