第一题：ac a= list(map(int,input().split())) student =a[0] major = a[1] get_ward = [0]*student all = [] for _ in range(student): score = list(map(int,input().split())) all.append(score) for i in range(major): max_value = 0 max_index = [] for j in range(student): if all[j][i]>max_value: max_index = [j] max_value = all[j][i] elif all[j][i]==max_value: max_index.append(j) for k in max_index: get_ward[k]=1 print(sum(get_ward)) 第二题：ac n = int(input()) l = list(map(int,input().split())) l = l[:n] max_value= 0 for i in range(n-1): for j in range(i+1,n): c = bin(l[i]^l[j]).count("1") if c > max_value: max_value = c print(max_value)