Number of contestant

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There are $n$ contest in an event named [Technovation2k18](http://technovation2k18.org). The contests are numbered from $1,2,3….n $. Each contest has $a[i]$ number of contestants in it. Given $q$ queries, you need to tell how many contestant will be in between contest $i$ and contest $r$ both inclusive (include all the contestant of contest $l$,$l+1$,$l+2$,….. upto $r$) . ###Input: - First line c

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solution.cppC++17

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