螺旋折线（蓝桥杯18G）

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#include<iostream>
using namespace std;
typedef pair<int,int> Dot;//存储坐标
int dy[] = { 0,1,0,-1 };
int dx[] = { -1,0,1,0 };
int main() {int direction = 0,x,y,dis = 0;Dot pos = make_pair(0,0);cin >> x >> y;for (int i = 1;; i++) {for (int j = 1; j <= 2;j++) {int dis1 = 0;do {pos = make_pair(pos.first+dx[direction],pos.second+dy[direction]);dis++;dis1++;if (pos.first == x && pos.second == y) {cout << dis;return 0;}} while (dis1<i);direction = (direction + 1) % 4;}}return 0;

#include<iostream>
using namespace std;
typedef long long ll;
int main() {int x, y;cin >> x >> y;ll n = max(abs(x),abs(y));ll sum = (8 + 8 * (n - 1)) * (n - 1) / 2;if (x < y) {sum += 2 * n + x + y;}else {sum += 6 * n - x - y;}cout << sum;return 0;
}