문제
풀이
import sys
def solve():
n = int(sys.stdin.readline())
sum = 0
for i in range(n):
sum += int(sys.stdin.readline())
if sum > 0:
print('+')
elif sum < 0:
print('-')
else:
print(0)
for _ in range(3):
solve()import sys
def solve():
n = int(sys.stdin.readline())
sum = 0
for i in range(n):
sum += int(sys.stdin.readline())
if sum > 0:
print('+')
elif sum < 0:
print('-')
else:
print(0)
for _ in range(3):
solve()