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[쉽게 푸는 문제]-1292번 검색 www.acmicpc.net My answer a,b=input().split() a=int(a) b=int(b) tmp=[] sum=0 for i in range(b): if(len(tmp)>b): break while(tmp.count(i+1)!=i+1): if(len(tmp)>b): break tmp.append(i+1) for i in range(a-1,b): sum+=tmp[i] print(sum) Another answer p=[] for i in range(1,46): p+=[i]*i a,b=map(int,input().split()) print(sum(p[a-1:b])) 더보기 어제부터 계속 나오는데 input받을 때 map 쓰는 걸 익숙해져야겠다. 우선..