#include using namespace std; typedef signed long long ll; #undef _P #define _P(...) (void)printf(__VA_ARGS__) #define FOR(x,to) for(x=0;x<(to);x++) #define FORR(x,arr) for(auto& x:arr) #define FORR2(x,y,arr) for(auto& [x,y]:arr) #define ITR(x,c) for(__typeof(c.begin()) x=c.begin();x!=c.end();x++) #define ALL(a) (a.begin()),(a.end()) #define ZERO(a) memset(a,0,sizeof(a)) #define MINUS(a) memset(a,0xff,sizeof(a)) //------------------------------------------------------- int N,Q; int A[20202]; template class BIT { public: V bit[1< bt; void solve() { int i,j,k,l,r,x,y; string s; cin>>N>>Q; FOR(i,N) cin>>A[i]; FOR(i,N) { if(i) pref[i]+=pref[i-1]; pref[i]+=bt(N)-bt(A[i]); bt.add(A[i],1); } ZERO(bt.bit); for(i=N-1;i>=0;i--) { suf[i]=suf[i+1]+bt(A[i]-1); bt.add(A[i],1); } FOR(i,Q) { int L,R; ZERO(B); ZERO(C); cin>>L>>R; L--,R--; ll ret=(L?pref[L-1]:0)+suf[R+1]; FOR(j,L) B[A[j]]++; for(j=N+1;j>=1;j--) B[j]+=B[j+1]; for(j=R+1;j