zoj 2807 Electrical Outlets

#include <stdio.h>#include <string.h>#include <map>#include <vector>#include <algorithm>using namespace std;int a[1000];int main(){ int i,j,n,T,s; scanf("%d",&T); while(T--) { scanf("%d",&n); s=0; for (i=0;i<n;i++) { scanf("%d",&a[i]); s+=a[i]; } printf("%dn",s-n+1); } return 0;}