题解 | 合并表记录

import sys

def main():
    d = sys.stdin.read().strip().split()

    n = int(d[0])
    records = []

    # 解析数据
    for i in range(n):
        ip = int(d[1 + 2 * i])
        v = int(d[2 + 2 * i])
        records.append((ip, v))

    # 使用字典合并相同索引
    comb = {}
    for ip, v in records:
        if ip in comb:
            comb[ip] += v
        else:
            comb[ip] = v

    # 按键（索引）排序并输出
    for ip in sorted(comb.keys()):
        print(f"{ip} {comb[ip]}")


if __name__ == "__main__":
    main()

差不多快忘完了，捡起字典费了点劲