ji-0630
commented
1 year ago 나의 풀이
import sys
a, b = map(int, sys.stdin.readline().split())
suma = int(a * (a+1) // 2)
print(suma - b)Closed ji-0630 closed 1 year ago
ji-0630
commented
1 year ago import sys
a, b = map(int, sys.stdin.readline().split())
suma = int(a * (a+1) // 2)
print(suma - b)
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