Buggy python submission (verdict: Time Limit Exceeded):
def main():
    count = int(input())

    imps = []
    for n in range(count):
        imps.append(input())

    db = []
    for imp in imps:
        command = imp.split(' ')
        if command[0] == 'insert':
            db.append(command[1])
        elif command[0] == 'find':
            if command[1] in db:
                print('yes')
            else:
                print('no')


main()

Fixed submission:
import sys


def main():
    _ = int(input())

    imps = sys.stdin.readlines()

    db = {}
    for imp in imps:
        c, k = imp.split(' ')
        if c == 'insert':
            db[k] = 0
        elif k in db:
            print('yes')
        else:
            print('no')


main()

Buggy python submission (verdict: Time Limit Exceeded):
import sys


def main():
    _ = int(input())

    imps = sys.stdin.readlines()

    db = []
    for imp in imps:
        command = imp.split(' ')
        if command[0] == 'insert':
            db.append(command[1])
        elif command[0] == 'find':
            if command[1] in db:
                print('yes')
            else:
                print('no')


main()

Fixed submission:
import sys


def main():
    _ = int(input())

    imps = sys.stdin.readlines()

    db = {}
    for imp in imps:
        c, k = imp.split(' ')
        if c == 'insert':
            db[k] = 0
        elif k in db:
            print('yes')
        else:
            print('no')


main()

Buggy python submission (verdict: Runtime Error):
import sys


def main():
    _ = int(input())

    imps = sys.stdin.readlines()

    db = []
    for imp in imps:
        command = imp.split(' ')
        if command[0] == 'insert':
            db.append(command[1])
        else
            if command[1] in db:
                print('yes')
            else:
                print('no')


main()

Fixed submission:
import sys


def main():
    _ = int(input())

    imps = sys.stdin.readlines()

    db = {}
    for imp in imps:
        c, k = imp.split(' ')
        if c == 'insert':
            db[k] = 0
        elif k in db:
            print('yes')
        else:
            print('no')


main()

Buggy python submission (verdict: Time Limit Exceeded):
import sys


def main():
    _ = int(input())

    imps = sys.stdin.readlines()

    db = []
    for imp in imps:
        command = imp.split(' ')
        if command[0] == 'insert':
            db.append(command[1])
        else:
            if command[1] in db:
                print('yes')
            else:
                print('no')


main()

Fixed submission:
import sys


def main():
    _ = int(input())

    imps = sys.stdin.readlines()

    db = {}
    for imp in imps:
        c, k = imp.split(' ')
        if c == 'insert':
            db[k] = 0
        elif k in db:
            print('yes')
        else:
            print('no')


main()

Buggy python submission (verdict: Runtime Error):
import sys


def main():
    _ = int(input())

    imps = sys.stdin.readlines()

    db = {}
    for imp in imps:
        c, k = imp.split(' ')
        if c == 'insert':
            c[k] = 0
        elif db in k:
            print('yes')
        else:
            print('no')


main()

Fixed submission:
import sys


def main():
    _ = int(input())

    imps = sys.stdin.readlines()

    db = {}
    for imp in imps:
        c, k = imp.split(' ')
        if c == 'insert':
            db[k] = 0
        elif k in db:
            print('yes')
        else:
            print('no')


main()

Buggy python submission (verdict: Runtime Error):
import sys


def main():
    _ = int(input())

    imps = sys.stdin.readlines()

    db = {}
    for imp in imps:
        c, k = imp.split(' ')
        if c == 'insert':
            c[k] = 0
        elif db in k:
            print('yes')
        else:
            print('no')


main()

Fixed submission:
import sys


def main():
    _ = int(input())

    imps = sys.stdin.readlines()

    db = {}
    for imp in imps:
        c, k = imp.split(' ')
        if c == 'insert':
            db[k] = 0
        elif k in db:
            print('yes')
        else:
            print('no')


main()

Buggy python submission (verdict: Runtime Error):
import sys


def main():
    _ = int(input())

    imps = sys.stdin.readlines()

    db = {}
    for imp in imps:
        c, k = imp.split(' ')
        if c == 'insert':
            db[k] = 0
        elif db in k:
            print('yes')
        else:
            print('no')


main()

Fixed submission:
import sys


def main():
    _ = int(input())

    imps = sys.stdin.readlines()

    db = {}
    for imp in imps:
        c, k = imp.split(' ')
        if c == 'insert':
            db[k] = 0
        elif k in db:
            print('yes')
        else:
            print('no')


main()

Buggy python submission (verdict: Runtime Error):
import sys


def main():
    _ = int(input())

    imps = sys.stdin.readlines()

    db = {}
    for imp in imps:
        c, k = imp.split(' ')
        if c == 'insert':
            db[k] = 0
        elif db in k:
            print('yes')
        else:
            print('no')


main()

Fixed submission:
import sys


def main():
    _ = int(input())

    imps = sys.stdin.readlines()

    db = {}
    for imp in imps:
        c, k = imp.split(' ')
        if c == 'insert':
            db[k] = 0
        elif k in db:
            print('yes')
        else:
            print('no')


main()