import sys input = sys.stdin.readline n,a=map(int,input().split()) x=list(map(int,input().split())) class LazySegTree: def __init__(self, N, func, intv): self.intv = intv self.func = func self.LV = (N-1).bit_length() self.N0 = 2**self.LV self.data = [intv]*(2*self.N0) self.lazy = [None]*(2*self.N0) def gindex(self, l, r): L = (l + self.N0) >> 1; R = (r + self.N0) >> 1 lc = 0 if l & 1 else (L & -L).bit_length() rc = 0 if r & 1 else (R & -R).bit_length() v = 2 for i in range(self.LV): if rc <= i: yield R if L < R and lc <= i: yield L L >>= 1; R >>= 1; v <<= 1 def propagates(self, *ids): for i in reversed(ids): v = self.lazy[i-1] if v is None: continue self.lazy[2*i-1] = self.data[2*i-1] = self.lazy[2*i] = self.data[2*i] = v >> 1 self.lazy[i-1] = None def update(self, l, r, x): *ids, = self.gindex(l, r) self.propagates(*ids) L = self.N0 + l; R = self.N0 + r v = x while L < R: if R & 1: R -= 1 self.lazy[R-1] = self.data[R-1] = v if L & 1: self.lazy[L-1] = self.data[L-1] = v L += 1 L >>= 1; R >>= 1; v <<= 1 for i in ids: self.data[i-1] = self.func(self.data[2*i-1], self.data[2*i]) def query(self, l, r): self.propagates(*self.gindex(l, r)) L = self.N0 + l; R = self.N0 + r s = self.intv while L < R: if R & 1: R -= 1 s = self.func(s, self.data[R-1]) if L & 1: s = self.func(s, self.data[L-1]) L += 1 L >>= 1; R >>= 1 return s def segfunc(x, y): return x + y xx=[] for i in range(n): xx.append((x[i],i)) xx.sort() x.sort() inv=[0]*n for i in range(n): inv[xx[i][1]]=i st=LazySegTree(n,segfunc,0) t=int(input()) from bisect import bisect_left, bisect_right, insort for i in range(t): l,r=map(int,input().split()) id1=bisect_left(x,l) if id1==n: continue id2=bisect_right(x,r)-1 st.update(id1,id2+1,i+1) for i in range(n): ans=st.query(inv[i],inv[i]+1) if ans==0: print(-1) else: print(ans)