【PAT】1002.A+B for Polynomials
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#include<iostream>#include<cmath>#include <cstdio>#include<algorithm>using namespace std;float a[1001],b[1001],c[1001];int main(){ int k1,k2; cin>>k1; int cnt=0; for(int i=0;i<k1;i++){ int ep; float cof; cin>>ep>>cof; a[ep]=cof; cnt=max(ep,cnt); } cin>>k2; for(int i=0;i<k2;i++){ int ep; float cof; cin>>ep>>cof; b[ep]=cof; cnt=max(ep,cnt); } for(int i=0;i<=cnt;i++){ c[i]=a[i]+b[i]; } int num=0; for(int i=cnt;i>=0;i--){ if(c[i]){ num++; } } cout<<num; for(int i=cnt;i>=0;i--){ if(c[i]){ printf(" %d %.1f",i,c[i]); } } return 0;}
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