题解 | 记票统计

n_cands = int(input())
cand_list = list(input().split())
m_voters = int(input())
vote_res = list(input().split())

# Use the candidate list to create a dictionary to store vote counts:
vote_counts = {}
for cand in cand_list:
    if cand not in vote_counts:
        vote_counts[cand] = 0

# Initialize the 'Invalid' category in the vote counts dictionary:
vote_counts['Invalid'] = 0

for res in vote_res:
    if res in vote_counts:
        vote_counts[res] += 1
    else:
        vote_counts['Invalid'] += 1

# Use .items() to iterate over each key-value pair for output printing:
for key, value in vote_counts.items(): 
    print(key + " : " + str(value))