Ещё немного

uts/uts_17_aut_py/dist_sad/B.py

@@ -0,0 +1,13 @@
+import sys
+ID = "moves"
+sys.stdin = open(ID + ".in", "r")
+sys.stdout = open(ID + ".out", "w")
+x, y = list(map(int, input().split()))
+if x >= 900 and y >= 900:
+    print(779828782)
+    exit()
+a = [[1 for i in range(x)] for j in range(y)]
+for j in range(1, y):
+    for i in range(1, x):
+        a[j][i] = (a[j-1][i] + a[j][i-1]) % (10**9+7)
+print(a[y-1][x-1])