This time, you are supposed to find A+B where A and B are two polynomials.
Input： Each input file contains one test case. Each case occupies 2 lines, and each line contains the information of a polynomial: K N1 aN1 N2 aN2 … NK aNK, where K is the number of nonzero terms in the polynomial, Ni and aNi (i=1, 2, …, K) are the exponents and coefficients, respectively. It is given that 1 <= K <= 10，0 <= NK < … < N2 < N1 <=1000.
Output： For each test case you should output the sum of A and B in one line, with the same format as the input. Notice that there must be NO extra space at the end of each line. Please be accurate to 1 decimal place.
Sample Input 2 1 2.4 0 3.2 2 2 1.5 1 0.5
Sample Output 3 2 1.5 1 2.9 0 3.2
#include<stdio.h>int main(){ int i,j, a,z,k=0; double x, sum[2005] = {0}; for (j = 0; j < 2; j++) { scanf("%d", &a); for (i = 0; i < a; i++) { scanf("%d %lf", &z,&x); if (sum[z] == 0) k++; sum[z] =sum[z]+ x; if (sum[z] == 0) k--; } } PRintf("%d", k); for (i = 2004; i >= 0;i--) { if (sum[i] != 0) { printf(" %d %.1lf", i, sum[i]); } } return 0;}这点很关键 楼主粗心啦 : (
if (sum[z] == 0) k--;新闻热点
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