complete 27323 and aloha bfs(1260, 1697, 14940)

zeta_python/completed/1260.py

@@ -0,0 +1,45 @@
+def dfs(N, M, E, V):
+    D = []
+    D.append((V))
+    visited = []
+    while D:
+        now = D.pop()
+        if now in visited:
+            continue
+        else:
+            visited.append(now)
+        for i in E[now][::-1]:
+            D.append(i)
+
+    return visited
+
+
+def bfs(N, M, E, V):
+    D = []
+    D.append((V))
+    visited = []
+    while D:
+        now = D.pop(0)
+        if now in visited:
+            continue
+        else:
+            visited.append(now)
+        for i in E[now]:
+            D.append(i)
+
+    return visited
+
+
+if __name__ == '__main__':
+    N, M, V = map(int, input().split())
+    E = {}
+    for i in range(1, N + 1):
+        E[i] = []
+    for i in range(1, M + 1):
+        a, b = map(int, input().split())
+        E[a].append(b)
+        E[b].append(a)
+    for i in range(1, N + 1):
+        E[i].sort()
+    print(*dfs(N, M, E, V))
+    print(*bfs(N, M, E, V))

zeta_python/completed/14940.py

@@ -0,0 +1,36 @@
+def solve(N, M, X, dest):
+    delta = ((-1, 0), (1, 0), (0, 1), (0, -1))
+    D = []
+    # X = [[-1] * M for _ in range(N)]
+
+    D.append((dest, 0))
+    while D:
+        now, cost = D.pop(0)
+        if X[now[0]][now[1]] == -1:
+            X[now[0]][now[1]] = cost
+
+        else:
+            continue
+
+        for dx, dy in delta:
+            new = now[0] + dx, now[1] + dy
+            if 0 <= new[0] < N and 0 <= new[1] < M:
+                D.append((new, cost + 1))
+    return X
+
+
+if __name__ == '__main__':
+    N, M = map(int, input().split())
+    U = []
+    X = [[-1] * M for _ in range(N)]
+    dest: tuple
+    for i in range(N):
+        temp = list(map(int, input().split()))
+        for j, v in enumerate(temp):
+            if v == 0:
+                X[i][j] = 0
+            elif v == 2:
+                dest = (i, j)
+
+    for i in solve(N, M, X, dest):
+        print(*i)

zeta_python/completed/1697.py

@@ -0,0 +1,33 @@
+from queue import Queue
+
+
+def solve(N, K):
+    D = Queue()
+    M = [0] * 100001
+    D.put((N, 0))
+    while D:
+        now, t = D.get()
+        if now > 100000 or now < 0:
+            continue
+        if M[now] == 0:
+            M[now] = t
+        elif t > M[now]:
+            continue
+
+        target = []
+
+        if now > K:
+            target.append((now - 1, t + 1))
+        elif now == K:
+            return t
+        elif now < K:
+            target.append((2 * now, t + 1))
+            target.append((now + 1, t + 1))
+            target.append((now - 1, t + 1))
+        for temp in target:
+            D.put(temp)
+
+
+if __name__ == '__main__':
+    N, K = map(int, input().split())
+    print(solve(N, K))