Analysis of Pat computer problems in Zhejiang University 1010. Mona polynomial derivation (25)

1010. mona1 polynomial derivation (25) Time Limit 400 MS
The memory limit is 32000 kb.
Code length limit: 8000 B
Criterion

The design function is used to evaluate the derivative of a polynomial.

Input Format:Input the non-zero coefficient and exponent of the polynomial in the exponential descent mode (the absolute values are integers up to 1000 ). Numbers are separated by spaces.

Output Format:Outputs the coefficients and exponent of the non-zero polynomial of the derivative in the same format as the input. Numbers are separated by spaces, but no extra space is allowed at the end.

Input example:

3 4-5 2 6 1-2 0

Output example:

12 3-10 1 6 0

# Include <iostream>
# Include <string> using namespace STD; int main () {int K, J; bool flag = false; while (CIN> K> J) {If (K * j) {If (FLAG) cout <"; else flag = true; cout <K * j <" <J-1 ;}} if (! Flag) cout <"0 0"; return 0 ;}