#include // cout, endl, cin #include // string, to_string, stoi #include // vector #include // min, max, swap, sort, reverse, lower_bound, upper_bound #include // pair, make_pair #include // tuple, make_tuple #include // int64_t, int*_t #include // printf #include // map #include // queue, priority_queue #include // set #include // stack #include // deque #include // unordered_map #include // unordered_set #include // bitset #include // isupper, islower, isdigit, toupper, tolower #include #include #include #include #include #include #include #include #include #include #include #include #include using namespace std; #define ll long long #define ull unsigned long long #define ld long double typedef vector vll; using LL = long long; using ULL = unsigned long long; using VI = vector; using VVI = vector; using VVVI = vector; using VL = vector; using VVL = vector; using VVVL = vector; using VB = vector; using VVB = vector; using VVVB = vector; using VD = vector; using VVD = vector; using VVVD = vector; using VC = vector; using VS = vector; using VVC = vector; using PII = pair; using PLL = pair; using PDD = pair; using PIL = pair; using MII = map; using MLL = map; using SI = set; using SL = set; using MSI = multiset; using MSL = multiset; template using MAXPQ = priority_queue; template using MINPQ = priority_queue< T, vector, greater >; const ll MOD = 1000000007; const ll MOD2 = 998244353; const ll INF = 1LL << 60; #define PI 3.14159265358979323846 #define FOR(i, a, b) for(int i = (a); i < (b); ++i) #define REP(i, n) FOR(i, 0, n) #define EACH(e, v) for(auto &e : v) #define RITR(it, v) for(auto it = (v).rbegin(); it != (v).rend(); ++it) #define ALL(v) v.begin(),v.end() vector x8={1,1,1,0,0,-1,-1,-1},y8={1,0,-1,1,-1,1,0,-1}; int dx4[4]={1,-1,0,0}, dy4[4]={0,0,1,-1}; /* memo -uf,RMQ(segtree),BIT,BIT2,SegTree,SegTreeLazy -isprime,Eratosthenes,gcdlcm,factorize,divisors,modpow,moddiv(modpow必要) nCr(+modnCr,inverse,extend_euclid.powmod),tobaseB,tobase10 -dijkstra,Floyd,bellmanford,sccd,topological,treediamiter -compress1,compress2,rotate90 -co,ci,fo1,fo2,fo3,fo4 -bitsearch,binaryserach -bfs(vis.assign忘れるな) -SegTreedec,SegTreeLazydec */ template struct SegTree{ using FX = function; //Xを2つ受け取りXを返す関数の型 long long n,N; FX fx; X ex; vector dat; //要素数N,二項演算fx,単位元ex; SegTree(long long _n, FX _fx, X _ex){ init(_n, _fx, _ex); } void init(long long _n, FX _fx, X _ex){ N = _n, fx = _fx; ex = _ex; long long x = 1; while(_n > x) x *= 2; n = x; dat.assign(n*2,_ex); } //i番目の要素にアクセス(0-indexed),O(1) X operator[](long long i){return dat[n+i];} X get(long long i){return dat[n+i];} //i番目の要素をxにアップデート(0-indexed),O(logN) void set(long long i, X x){ i += n; dat[i] = x; while(i >>= 1){ dat[i] = fx(dat[2*i],dat[2*i+1]); } } //[l,r)で二項演算を作用した結果(0-indexed),O(logN) X prod(long long l, long long r){ X vleft = ex, vright = ex; for(long long left = l+n, right = r+n; left < right; left >>= 1, right >>= 1){ if(left & 1) vleft = fx(vleft,dat[left++]); if(right & 1) vright = fx(vright,dat[--right]); } return fx(vleft,vright); } //[0,N)まで二項演算を作用,O(1) X all_prod() {return dat[1];} //x=prod(l,r),f(x)=trueとなる最大のrを求める(f(ex)=true, 0-indexed),O(logN) long long max_right(const function f, long long l = 0){ if(l == N) return N; l += n; X sum = ex; do{ while(l % 2 == 0) l >>= 1; if(!f(fx(sum,dat[l]))){ while(l < n){ l = l * 2; if(f(fx(sum,dat[l]))){ sum = fx(sum,dat[l]); l++; } } return l - n; } sum = fx(sum,dat[l]); l++; }while((l & -l) != l); return N; } //x=prod(l,r),f(x)=trueとなる最小のlを求める(f(ex)=true, 0-indexed),O(logN) long long min_left(const function f, long long r = -1){ if(r == 0) return 0; if(r == -1) return N; r += n; X sum = ex; do{ r--; while(r > 1 && (r % 2)) r >>= 1; if(!f(fx(dat[r],sum))){ while(r < n){ r = r * 2 + 1; if(f(fx(dat[r],sum))){ sum = fx(dat[r],sum); r--; } } return r + 1 - n; } sum = fx(dat[r],sum); }while((r & -r) != r); return 0; } }; int main(){ cin.tie(0); ios_base::sync_with_stdio(0); ll N,Q; cin >> N >> Q; VL a(N); for(ll i = 0; i < N; i++) cin >> a[i]; VL b = a; sort(ALL(b)); unique(ALL(b)); map mp; for(ll i = 0; i < b.size(); i++){ mp[b[i]]=i+1; } VL c(N); for(ll i = 0; i < N; i++){ c[i] = mp[a[i]]; //cout << c[i] << " "; } auto fx = [](ll x1, ll x2) -> ll { return x1+x2; }; // 二項演算(RMQになってるので書き換える); ll ex = 0; // 単位元(fxに応じて書き換える); SegTree seg(N+1, fx, ex); // (要素数, 二項演算, 単位元); VL sum(N+1); for(ll i = 0; i < N; i++){ seg.set(c[i],seg[c[i]]+1); sum[c[i]]++; } for(ll i = 0; i < N; i++){ sum[i+1] += sum[i]; } ll x,y; for(ll i = 0; i < Q; i++){ cin >> x >> y; x--,y--; if(c[x] <= c[y]){ cout << 0 << endl; continue; } ll res = sum[c[x]]-sum[c[y]+1]; cout << res << endl; } }