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#include <cstdio>
#include <vector>
#include <algorithm>

using namespace std;

typedef unsigned long long int ull_t;

struct mow
{
    int l, r;
    ull_t d, b;
};

int sb( const vector< mow > & mowv, int i, int C )
{
    int l = 0, r = C - 1;
    
    while( l < r ) {
        int m = ( l + r ) / 2;
        if( mowv[m].l <= i && i <= mowv[m].r )
            return m;
        else if( i < mowv[m].l )
            r = m - 1;
        else if( i > mowv[m].r )
            l = m + 1;
    }
    
    return l;
}

int ub( const vector<int> & a, const vector< mow > & mowv, int C, ull_t day, ull_t b )
{
    int l = 0, r = a.size() - 1; 
    
    while( l < r )
    {
        int m = ( l + r ) / 2;
        int mowm = sb( mowv, m, C );
        
        if( mowv[ mowm ].b + ( day - mowv[ mowm ].d ) * a[m] <= b )
        {
            l = m + 1;
        }
        else 
        {
            r = m;
        }
    }
    
    return l;
}

void solve( vector<int> & a, const vector< mow > & mowv )
{    
    sort( begin(a), end(a) );        
    
    //
    vector< ull_t > suml( a.size() );    
    
    ull_t s = a[0];
    
    for( int i = 1; i < a.size(); ++i )
    {
        suml[i] = s;
        s += a[i];
    }

    //
    vector< ull_t > sumr( a.size() );
    
    s = a[ a.size() - 1 ];
    
    for( int i =  a.size() - 2; i >= 0; --i )
    {
        sumr[i] = s;
        s += a[i];                
    }
    
    int C = 1;
    vector< mow > cmowv( a.size(), { 0, 0, 0, 0 } );
    cmowv[0] = { 0, a.size() - 1, 0, 0 };
    
    for( const mow & emow : mowv )
    {
        int l = ub( a, cmowv, C, emow.d, emow.b );
        int mowm = sb( cmowv, l, C );
        ull_t h = cmowv[ mowm ].b + ( emow.d - cmowv[ mowm ].d ) * a[l];
        if( h > emow.b ) 
        {
            ull_t w = 0;
            
            //
            if( cmowv[ mowm ].b > emow.b ) {
                w += ( cmowv[ mowm ].b - emow.b ) * ( cmowv[ mowm ].r - cmowv[ mowm ].l + 1 );
                w += ( emow.d - cmowv[ mowm ].d ) * ( s - suml[ cmowv[ mowm ].l ] - sumr[ cmowv[ mowm ].r ] ); 
            }
            else {
                w += ( emow.d - cmowv[ mowm ].d ) * ( s - suml[ l ] - sumr[ cmowv[ mowm ].r ] ) - ( cmowv[ mowm ].r - l + 1 ) * ( emow.b - cmowv[ mowm ].b );
            }
            
            //
            for( int mowi = mowm + 1; mowi < C; ++mowi ) {            
                if( cmowv[ mowi ].b > emow.b ) {
                    w += ( cmowv[ mowi ].b - emow.b ) * ( cmowv[ mowi ].r - cmowv[ mowi ].l + 1 );
                    w += ( emow.d - cmowv[ mowi ].d ) * ( s - suml[ cmowv[ mowi ].l ] - sumr[ cmowv[ mowi ].r ] ); 
                }
                else {
                    w += ( emow.d - cmowv[ mowi ].d ) * ( s - suml[ cmowv[ mowi ].l ] - sumr[ cmowv[ mowi ].r ] ) - 
                        ( cmowv[ mowi ].r - cmowv[ mowi ].l + 1 ) * ( emow.b - cmowv[ mowi ].b );
                }
            }
            
            printf("%llu\n", w);
                        
            if( l == cmowv[ mowm ].l ) {
                C = mowm + 1;
                cmowv[ mowm ].r = a.size() - 1;
                cmowv[ mowm ].d = emow.d;
                cmowv[ mowm ].b = emow.b;
            }
            else {
                C = mowm + 2;
                cmowv[ mowm ].r = l - 1;
                
                cmowv[ mowm + 1 ].l = l;
                cmowv[ mowm + 1 ].r = a.size() - 1;
                cmowv[ mowm + 1 ].d = emow.d;
                cmowv[ mowm + 1 ].b = emow.b;
            }
        }
        else {
            printf("0\n");
        }
    }
}

int main( int argc, char* argv[] )
{   
    int n, m;
    
    scanf("%d %d", & n, & m );
    
    vector< int > a;    
    
    for( int i = 0; i < n; ++i ) {
        int aa;
        scanf("%d", & aa);
        a.push_back(aa);
    }
    
    vector< mow > mowv;
    
    for( int i = 0; i < m; ++i ) {
        mow amow;
        scanf("%lld %lld", & amow.d, & amow.b );
        mowv.push_back(amow);
    }
    
    solve( a, mowv );
    
    return 0;
}