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  1. __author__ = 'Zlobober'
  2. n = int(raw_input())
  3. A = []
  4. P = []
  5. for i in range(n):
  6.     a, p = map(int, raw_input().split())
  7.     A.append(a)
  8.     P.append(p)
  9. mn = 142
  10. ans = 0
  11. for i in range(n):
  12.     mn = min(mn, P[i])
  13.     ans += A[i] * mn
  14. print ans
Runtime error #stdin #stdout #stderr 0.01s 9016KB
comments (?)
stdin 
Standard input is empty
stdout 
Standard output is empty
stderr 
Traceback (most recent call last):
  File "prog.py", line 2, in <module>
EOFError: EOF when reading a line
https://ideone.com/5J6Rew
language:
Python (cpython 2.7.16)
created:
9 years ago
visibility:
public

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