Unverified Commit 8de65006 authored by Angel_Kitty's avatar Angel_Kitty Committed by GitHub
Browse files

Merge pull request #1809 from MXR128/master 

Update scanning.md_改善标程中循环变量的定义方式
parents 496efb4b 67d5f0c5

docs/geometry/scanning.md

+3 −3
Original line number Diff line number Diff line
@@ -99,11 +99,11 @@ void update(int rt, double y1, double y2, int flag) { 
}



int main() {

  int temp = 1, n, i, j;

  int temp = 1, n;

  double x1, y1, x2, y2, ans;

  while (scanf("%d", &n) && n) {

    ans = 0;

    for (i = 0; i < n; i++) {

    for (int i = 0; i < n; i++) {

      scanf("%lf %lf %lf %lf", &x1, &y1, &x2, &y2);

      p[i].x = x1;

      p[i].y1 = y1;
@@ -121,7 +121,7 @@ int main() { 
    build(1, 1, 2 * n);       //建树

    memset(lazy, 0, sizeof(lazy));

    update(1, p[0].y1, p[0].y2, p[0].flag);

    for (i = 1; i < 2 * n; i++) {

    for (int i = 1; i < 2 * n; i++) {

      ans += (p[i].x - p[i - 1].x) * cl[1].sum;

      update(1, p[i].y1, p[i].y2, p[i].flag);

    }