#pragma GCC optimize ("Ofast") #include using namespace std; void*wmem; char memarr[96000000]; template inline void walloc1d(T **arr, int x, void **mem = &wmem){ static int skip[16] = {0, 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1}; (*mem) = (void*)( ((char*)(*mem)) + skip[((unsigned long long)(*mem)) & 15] ); (*arr)=(T*)(*mem); (*mem)=((*arr)+x); } inline int my_getchar_unlocked(){ static char buf[1048576]; static int s = 1048576; static int e = 1048576; if(s == e && e == 1048576){ e = fread_unlocked(buf, 1, 1048576, stdin); s = 0; } if(s == e){ return EOF; } return buf[s++]; } inline void rd(int &x){ int k; int m=0; x=0; for(;;){ k = my_getchar_unlocked(); if(k=='-'){ m=1; break; } if('0'<=k&&k<='9'){ x=k-'0'; break; } } for(;;){ k = my_getchar_unlocked(); if(k<'0'||k>'9'){ break; } x=x*10+k-'0'; } if(m){ x=-x; } } struct MY_WRITER{ char buf[1048576]; int s; int e; MY_WRITER(){ s = 0; e = 1048576; } ~MY_WRITER(){ if(s){ fwrite_unlocked(buf, 1, s, stdout); } } } ; MY_WRITER MY_WRITER_VAR; void my_putchar_unlocked(int a){ if(MY_WRITER_VAR.s == MY_WRITER_VAR.e){ fwrite_unlocked(MY_WRITER_VAR.buf, 1, MY_WRITER_VAR.s, stdout); MY_WRITER_VAR.s = 0; } MY_WRITER_VAR.buf[MY_WRITER_VAR.s++] = a; } inline void wt_L(char a){ my_putchar_unlocked(a); } inline void wt_L(long long x){ int s=0; int m=0; char f[20]; if(x<0){ m=1; x=-x; } while(x){ f[s++]=x%10; x/=10; } if(!s){ f[s++]=0; } if(m){ my_putchar_unlocked('-'); } while(s--){ my_putchar_unlocked(f[s]+'0'); } } template inline S chmin(S &a, T b){ if(a>b){ a=b; } return a; } template struct fenwick{ int size; int memory; T*data; void malloc(int mem); void malloc(int mem, int fg); void walloc(int mem, void **workMemory = &wmem); void walloc(int mem, int fg, void **workMemory = &wmem); void free(void); void init(int N); void add(int k, T val); T get(int k); T range(int a, int b); int kth(T k); } ; template struct Arr1d{ int n; int mem; T*d; T& operator[](int a){ return d[a]; } void sort(){ reset(); std::sort(d, d+n); } int set_cumulative_sum; int cumulative_sum_mem; T*cumulative_sum; void setSum(void){ int i; set_cumulative_sum = 1; if(cumulative_sum_mem < n+1){ delete[] cumulative_sum; cumulative_sum = new T[n+1]; cumulative_sum_mem = n+1; } cumulative_sum[0] = 0; for(i=(0);i<(n);i++){ cumulative_sum[i+1] = cumulative_sum[i] + d[i]; } } T getSum(int i, int j){ if(set_cumulative_sum==0){ setSum(); } return cumulative_sum[j+1] - cumulative_sum[i]; } int set_const_len_left; int const_len_left_mem; int*const_len_left; void setConstLenLeft(void){ int i; set_const_len_left = 1; if(const_len_left_mem < n){ delete[] const_len_left; const_len_left = new int[n]; const_len_left_mem = n; } for(i=(0);i<(n);i++){ const_len_left[i] = 1; } for(i=(1);i<(n);i++){ if(d[i]==d[i-1]){ const_len_left[i] = const_len_left[i-1] + 1; } } } int ConstLenLeft(int st, T val){ if(!set_const_len_left){ setConstLenLeft(); } if(val != d[st]){ return 0; } return const_len_left[st]; } int ConstLenLeft(int st){ if(!set_const_len_left){ setConstLenLeft(); } return const_len_left[st]; } int ConstLenLeftCyclic(int st, T val){ if(!set_const_len_left){ setConstLenLeft(); } st %= n; if(st < 0){ st += n; } if(val != d[st]){ return 0; } if(const_len_left[st] != st+1 || d[st] != d[n-1]){ return const_len_left[st]; } if(const_len_left[n-1] == n){ return 1073709056; } return const_len_left[st] + const_len_left[n-1]; } int ConstLenLeftCyclic(int st){ if(!set_const_len_left){ setConstLenLeft(); } st %= n; if(st < 0){ st += n; } if(const_len_left[st] != st+1 || d[st] != d[n-1]){ return const_len_left[st]; } if(const_len_left[n-1] == n){ return 1073709056; } return const_len_left[st] + const_len_left[n-1]; } int set_const_len_right; int const_len_right_mem; int*const_len_right; void setConstLenRight(void){ int i; set_const_len_right = 1; if(const_len_right_mem < n){ delete[] const_len_right; const_len_right = new int[n]; const_len_right_mem = n; } for(i=(0);i<(n);i++){ const_len_right[i] = 1; } for(i=(n-1)-1;i>=(0);i--){ if(d[i]==d[i+1]){ const_len_right[i] = const_len_right[i+1] + 1; } } } int ConstLenRight(int st, T val){ if(!set_const_len_right){ setConstLenRight(); } if(val != d[st]){ return 0; } return const_len_right[st]; } int ConstLenRight(int st){ if(!set_const_len_right){ setConstLenRight(); } return const_len_right[st]; } int ConstLenRightCyclic(int st, T val){ if(!set_const_len_right){ setConstLenRight(); } if(val != d[st]){ return 0; } st %= n; if(st < 0){ st += n; } if(const_len_right[st] != n-st || d[st] != d[0]){ return const_len_right[st]; } if(const_len_right[0] == n){ return 1073709056; } return const_len_right[st] + const_len_right[0]; } int ConstLenRightCyclic(int st){ if(!set_const_len_right){ setConstLenRight(); } st %= n; if(st < 0){ st += n; } if(const_len_right[st] != n-st || d[st] != d[0]){ return const_len_right[st]; } if(const_len_right[0] == n){ return 1073709056; } return const_len_right[st] + const_len_right[0]; } int set_dhist; int dhist_mem; int*dhist; T dhist_mn; T dhist_mx; void setDHist(void){ int i; int len; set_dhist = 1; if(n==0){ return; } dhist_mn = dhist_mx = d[0]; for(i=(1);i<(n);i++){ if(dhist_mn > d[i]){ dhist_mn = d[i]; } if(dhist_mx < d[i]){ dhist_mx = d[i]; } } len = dhist_mx - dhist_mn + 1; if(dhist_mem < len){ delete[] dhist; dhist = new int[len]; dhist_mem = len; } for(i=(0);i<(len);i++){ dhist[i] = 0; } for(i=(0);i<(n);i++){ dhist[d[i] - dhist_mn]++; } } int dHist(T x){ if(set_dhist==0){ setDHist(); } if(n == 0 || x < dhist_mn || x > dhist_mx){ return 0; } return dhist[x - dhist_mn]; } void reset(){ set_cumulative_sum = 0; set_const_len_left = 0; set_const_len_right = 0; set_dhist = 0; } void memory_expand(int nn){ if(mem < nn){ delete[] d; d = new T[nn]; mem = nn; } } void malloc(int nn){ reset(); memory_expand(nn); n = nn; } void setN(int nn){ reset(); memory_expand(nn); n = nn; } void set(vector &a){ int i; int nn = a.size(); setN(nn); for(i=(0);i<(nn);i++){ d[i] = a[i]; } } void set(int nn, T a[]){ int i; setN(nn); for(i=(0);i<(nn);i++){ d[i] = a[i]; } } void free(){ destructor(); } void constructor(){ n = mem = 0; d = NULL; set_cumulative_sum = 0; cumulative_sum_mem = 0; cumulative_sum = NULL; set_const_len_left = 0; const_len_left_mem = 0; const_len_left = NULL; set_const_len_right = 0; const_len_right_mem = 0; const_len_right = NULL; set_dhist = 0; dhist_mem = 0; dhist = NULL; } void constructor(int nn){ constructor(); malloc(nn); } void destructor(){ delete[] d; d = NULL; mem = n = 0; set_cumulative_sum = 0; cumulative_sum_mem = 0; delete[] cumulative_sum; cumulative_sum = NULL; set_const_len_left = 0; const_len_left_mem = 0; delete[] const_len_left; const_len_left = NULL; set_const_len_right = 0; const_len_right_mem = 0; delete[] const_len_right; const_len_right = NULL; set_dhist = 0; dhist_mem = 0; delete[] dhist; dhist = NULL; } Arr1d(){ constructor(); } Arr1d(int nn){ constructor(nn); } ~Arr1d(){ destructor(); } } ; int N; int Q; int A[20000]; int L; int R; fenwick f; int main(){ int i, xr20shxY; wmem = memarr; rd(N); rd(Q); { int Lj4PdHRW; for(Lj4PdHRW=(0);Lj4PdHRW<(N);Lj4PdHRW++){ rd(A[Lj4PdHRW]);A[Lj4PdHRW] += (-1); } } Arr1d x(N); Arr1d y(N); Arr1d h1(N); Arr1d h2(N); f.malloc(N); f.init(N); for(i=(0);i<(N);i++){ x[i] = f.range(A[i]+1, N-1); f.add(A[i], 1); } f.init(N); for(i=(N)-1;i>=(0);i--){ y[i] = f.get(A[i]-1); f.add(A[i], 1); } for(xr20shxY=(0);xr20shxY<(Q);xr20shxY++){ long long res = 4611686016279904256LL; rd(L);L += (-1); rd(R);R += (-1); for(i=(0);i<(N);i++){ h1[i] = h2[i] = 0; } h1.reset(); h2.reset(); for(i=(0);i<(L);i++){ h1[A[i]]++; } for(i=(R+1);i<(N);i++){ h2[A[i]]++; } for(i=(0);i<(N);i++){ chmin(res, (h1.getSum(i+1,N-1) + h2.getSum(0,i-1)) * (R - L + 1)); } for(i=(0);i<(L);i++){ res += h2.getSum(0, A[i]-1); } res += x.getSum(0,L-1) + y.getSum(R+1,N-1); wt_L(res); wt_L('\n'); } return 0; } template void fenwick::malloc(int mem){ memory = mem; data = (T*)std::malloc(sizeof(T)*mem); } template void fenwick::malloc(int mem, int fg){ memory = mem; data = (T*)std::malloc(sizeof(T)*mem); if(fg){ init(mem); } } template void fenwick::walloc(int mem, void **workMemory /* = &wmem*/){ memory = mem; walloc1d(&data, mem, workMemory); } template void fenwick::walloc(int mem, int fg, void **workMemory /* = &wmem*/){ memory = mem; walloc1d(&data, mem, workMemory); if(fg){ init(mem); } } template void fenwick::free(void){ memory = 0; free(data); } template void fenwick::init(int N){ size = N; memset(data,0,sizeof(T)*N); } template void fenwick::add(int k, T val){ while(k < size){ data[k] += val; k |= k+1; } } template T fenwick::get(int k){ T res = 0; while(k>=0){ res += data[k]; k = (k&(k+1))-1; } return res; } template T fenwick::range(int a, int b){ if(b==-1){ b=size-1; } return get(b) - get(a-1); } template int fenwick::kth(T k){ int i=0; int j=size; int c; T v; while(i f; // { // rd(N,Q,(A--)(N)); // Arr1d x(N), y(N), h1(N), h2(N); // f.malloc(N); // // f.init(N); // rep(i,N) x[i] = f.range(A[i]+1, N-1), f.add(A[i], 1); // f.init(N); // rrep(i,N) y[i] = f.get(A[i]-1), f.add(A[i], 1); // // rep(Q){ // ll res = ll_inf; // rd(L--, R--); // rep(i,N) h1[i] = h2[i] = 0; // h1.reset(); h2.reset(); // rep(i,L) h1[A[i]]++; // rep(i,R+1,N) h2[A[i]]++; // rep(i,N) res