C++ | Leetcode C++题解之第452题用最少数量的箭引爆气球
题目：
题解：
class Solution {
public:
int findMinArrowShots(vector<vector<int>>& points) {
if (points.empty()) {
return 0;
}
sort(points.begin(), points.end(), [](const vector<int>& u, const vector<int>& v) {
return u[1] < v[1];
});
int pos = points[0][1];
int ans = 1;
for (const vector<int>& balloon: points) {
if (balloon[0] > pos) {
pos = balloon[1];
++ans;
}
}
return ans;
}
};