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-rw-r--r--other/min_num_refueling_stops.cpp22
1 files changed, 22 insertions, 0 deletions
diff --git a/other/min_num_refueling_stops.cpp b/other/min_num_refueling_stops.cpp
new file mode 100644
index 0000000..34d929b
--- /dev/null
+++ b/other/min_num_refueling_stops.cpp
@@ -0,0 +1,22 @@
+#include "leetcode.h"
+
+class Solution {
+public:
+ int minRefuelStops(int target, int startFuel, vector<vector<int>> &stations) {
+ int n = stations.size(), ans = 0;
+ priority_queue<int> pq;
+ for (int i = 0; i <= n; i++) {
+ int dist = i == n ? target : stations[i][0];
+ while (startFuel < dist) {
+ if (!pq.size())
+ return -1;
+ startFuel += pq.top();
+ ans++;
+ pq.pop();
+ }
+ if (i < n)
+ pq.push(stations[i][1]);
+ }
+ return ans;
+ }
+};