Golang short solution
O(n) store O(n)\n\nfunc checkIfPangram(sentence string) bool {\n    store:=make(map[rune]struct{})\n    for _,ch:=range sentence{\n        if _,ok:=store[ch];!o
O(n) store O(n)\n```\nfunc checkIfPangram(sentence string) bool {\n    store:=make(map[rune]struct{})\n    for _,ch:=range sentence{\n        if _,ok:=store[ch];!ok{\n            store[ch]=struct{}{}\n        }\n    }\n    return len(store)==26\n}\n```
['Go']