Merge branch 'master' of https://github.com/letyousmile/Algorithm

Author: letyousmile

200204/Solution_programmers_등굣길_육성현.cpp

@@ -0,0 +1,31 @@
+#include <string>
+#include <vector>
+int cache[101][101];
+using namespace std;
+int M, N;
+int map[101][101];
+vector<vector<int>> v;
+void init(int m, int n, vector<vector<int>> puddles) {
+	M = m;
+	N = n;
+	for (int i = 0; i < puddles.size(); i++) {
+		map[puddles[i][0]][puddles[i][1]] = 1;
+	}
+	for (int i = 1; i <= m; i++) {
+		for (int j = 1; j <= n; j++) {
+			cache[i][j] = -1;
+		}
+	}
+}
+int goSchool(int y, int x) {
+	if (y > M || x > N) return 0;
+	if (y == M && x == N) return 1;
+	if (map[y][x] == 1) return 0;
+	if (cache[y][x] != -1) return cache[y][x];
+	return cache[y][x] = (goSchool(y + 1, x) + goSchool(y, x + 1)) % 1000000007;
+}
+int solution(int m, int n, vector<vector<int>> puddles) {
+	init(m, n, puddles);
+
+	return goSchool(1, 1);
+}