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 Input2 1 2.4 0 3.2 2 2 1.5 1 0.5Sample Output
3 2 1.5 1 2.9 0 3.2
水题,设一个数组存就好了,注意不要记录相加为0的项(主要失分点)
#include<stdio.h> int main() { int num,a,arrayNum[1001]; float b,Aarray[1001]; for(int i=0;i<=1000;i++) { arrayNum[i]=0; Aarray[i]=0; } while(scanf("%d",&num)!=EOF) { for(int i=0;i<num;i++) { scanf("%d %f",&a,&b); arrayNum[a]+=1; Aarray[a]+=b; //printf("%d:%d %.1f\n",a,arrayNum[a],Aarray[a]); } } int sum=0; for(int i=0;i<=1000;i++) { if(Aarray[i]!=0) { sum+=1; } } printf("%d",sum); for(int i=1000;i>=0;i--) { if(arrayNum[i]!=0) { if(Aarray[i]!=0) printf(" %d %.1f",i,Aarray[i]); } } }