Submission #726996

#	Time	Username	Problem	Language	Result	Execution time	Memory
726996		beaconmc	Coins (BOI06_coins)	Pypy 3	90 / 100	906 ms	41380 KiB

coins

n,k = map(int, input().split())

coins = []
have = []

for i in range(n):
    a,b = map(int, input().split())
    coins.append(a)
    have.append(b)

ans = 0
sum = 0

for i in range(len(coins)-1):
    if have[i]==0 and sum + coins[i] < coins[i+1] and sum+coins[i] < k:
        ans += 1
        sum += coins[i]
if sum+coins[-1] < k:
    ans += 1
    sum += coins[-1]
print(ans)
print(k-sum)

• Subtask 1: 90 / 100