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#include <bits/stdc++.h>
#include <ext/numeric>
#include <unistd.h>
using namespace std;
using namespace rel_ops;
using namespace __gnu_cxx;

typedef long long ll;
typedef unsigned long long ull;
typedef unsigned uint;

#define ALL(c)          (c).begin(), (c).end()
#define REP(i, n)       for (int i = 0, $##i = (n); i < $##i; ++i)
#define FOR(i, b, e)    for (int i = (b), $##i = (e); i <= $##i; ++i)
#define FORD(i, b, e)   for (int i = (b), $##i = (e); i >= $##i; --i)
#define EACH(it, cont)  for (auto &it : cont)
#define ever ( ; ; )
#define skip continue
const int inf = 1000000001;

struct GetSizeHelper {
	int s;
	operator int () const { return s; }
	template<class T> GetSizeHelper(const T &t) : s((int) t.size()) {}
};
#define SIZE (GetSizeHelper)

template<class T> int unique(T &t, bool sorted = false) {
	if (!sorted) { sort(ALL(t)); }
	t.resize(unique(ALL(t)) - t.begin()); 
	return SIZE t;
}
template <class T, class U> bool remin(T &a, const U &b) { return b < a ? a = b, true : false; }
template <class T, class U> bool remax(T &a, const U &b) { return b > a ? a = b, true : false; }
template<class T> T fromString(const string &s) { T t; istringstream(s) >> t; return t; }
template<class T> string toString(const T &t) { ostringstream oss; oss << t; return oss.str(); }
struct StdinReader {
	StdinReader() { ios::sync_with_stdio(0); }
} stdinReader;
#define get stdinReader,

#ifndef KOO_AFL
template<class T> StdinReader &operator, (StdinReader &sr, T &t) { cin >> t; return sr; }
#else // BINARY_INPUT
template<class T> StdinReader &operator, (StdinReader &sr, T &t) { assert(sizeof(t) <= 8); read(0, &t, sizeof(t)) ; return sr; }
#endif

template<class T> StdinReader &operator, (StdinReader &sr, vector<T> &v) {
	for (auto &x : v) { sr, x; } return sr;
}
#define dump     fancy_dumper::DumpFirst<&std::cerr>(),
#define say      fancy_dumper::DumpFirst<&std::cout>(),
#define $dump    fancy_dumper::Dumper<&std::cerr>
#define $say     fancy_dumper::Dumper<&std::cout>
#ifndef $
#define $(x) #x, fancy_dumper::ToggleSeparator(), (x),\
                 fancy_dumper::ToggleSeparator()
#endif

namespace fancy_dumper {

struct ToggleSeparator { };

template<ostream *Out>
struct DumpFirst { };

template<ostream *Out>
struct Dumper {
	static void *&last() {
		static void *p;
		return p;
	}
	static const char *&separator() {
		static const char *s = " ";
		return s;
	}
	static const char *&separatorNewLine() {
		static const char *s = "\n";
		return s;
	}
	static const char *&unseparator() {
		static const char *s = "=";
		return s;
	}
	Dumper() {
		last() = this;
	}
	~Dumper() {
		if (this == last()) {
			*Out << separatorNewLine();
			last() = 0;
		}
	}
	Dumper operator, (ToggleSeparator) {
		std::swap(separator(), unseparator());
		return Dumper();
	}
};

template<ostream *Out, class T>
Dumper<Out> operator,(Dumper<Out>, const T &e) {
	*Out << Dumper<Out>::separator() << e;
	return Dumper<Out>();
}

template<ostream *Out, class T>
Dumper<Out> operator, (DumpFirst<Out>, const T &e) {
	*Out << e;
	return Dumper<Out>();
}

}

template<class T, class Y>
ostream &operator<< (ostream &o, const pair<T, Y> &p) {
	return o << p.first << ' ' << p.second;
}

template<class T>
ostream &operator<< (ostream &o, const vector<T> &v) {
	bool isBegin = true;
	EACH (e, v) {
		if (!isBegin) { o << ' '; }
		isBegin = false;
		o << e;
	}
	return o;
}

template<class T>
ostream &operator<< (ostream &o, const set<T> &v) {
	bool isBegin = true;
	EACH (e, v) {
		if (!isBegin) { o << ' '; }
		isBegin = false;
		o << e;
	}
	return o;
}

template<class T>
ostream &operator,(ostream &o, const T &t) {
	return o << t;
}
// code starts here



vector<int> A;

vector<ll> P;
ll growth(int b, int e) {
	return P[e] - P[b];
}
void calcGrow() {
	int n = SIZE A;
	P.resize(n+1);
	FOR (i, 1, n) {
		P[i] = P[i-1]+A[i-1];
	}
}

int bin_search(int b, int e, const vector<int> &a, int x) {
	while (b < e) {
		int h = b + (e-b)/2;
		if (a[h] < x) {
			b = h+1;
		} else {
			e = h;
		}
	}
	return b;
}

struct Field {
	int beg, end; // indices
	ll height, date;
	
	Field() { memset(this, 0, sizeof(Field)); }
	
	ll heightAt(ll someDate, int somePoint) const {
		return height + (someDate - date) * A[somePoint]; // 10^12 + (10^12-sth) * 10^6 ~ 10^18
	}
	
	int len() const { return end - beg; }
};

struct Sheep {
	ll now, appetite, inStomach;
	int last;
	
	Sheep(ll d, ll b) {
		now = d;
		appetite = b;
		inStomach = 0;
	}
	
	bool canEatWhole(const Field &f) const {
		return f.heightAt(now, f.beg) > appetite; // who wants to bend down too much?
	}
	bool canAtLeastBite(const Field &f) const {
		return f.heightAt(now, f.end-1) > appetite;
	}
	void eat(const Field &f) {
		// invariant: canEatWhole(f) == true
		// this calculation will not overflow
		inStomach += (now - f.date) * growth(f.beg, f.end) + (f.height - appetite) * f.len();
		last = f.beg;
	}
	pair<Field, Field> split(const Field &f) const {
		const ll tdiff = now - f.date;
		// cast is safe, since we know that f.end-1 could be eaten (A[f.end-1]>need)
		// we also know that appetite > f.height (if not, canEatWhole will be return true)
		const int need = int((appetite - f.height) / tdiff); // int division is also ok
		const int idx = bin_search(f.beg, f.end, A, need+1);
		Field a = f, b = f;
		a.beg = f.beg;
		a.end = idx;
		b.beg = idx;
		b.end = f.end;
		return make_pair(a, b);
	}
	
	void meee() const { say inStomach; }
	bool hungry() const { return inStomach == 0; }
	Field pop() const {
		Field f;
		f.end = SIZE A; // since we eat something, we obviously eat also most delicious part
		f.beg = last;
		f.height = appetite;
		f.date = now;
		return f;
	}
};

int main() {
	int n, m;
	get n, m;
	A.resize(n);
	get A;
	sort(ALL(A));
	calcGrow();
	
	vector<Field> grass(1);
	grass[0].end = n;
	
	REP (_, m) {
		ll d, b;
		get d, b;
		Sheep sheep(d, b);
		
		while (!grass.empty()) {
			Field &f = grass.back();
			if (sheep.canEatWhole(f)) {
				sheep.eat(f);
				grass.pop_back();
				continue;
			}
			if (sheep.canAtLeastBite(f)) {
				auto p = sheep.split(f);
				f = p.first;
				sheep.eat(p.second);
			}
			break;
		}
		
		say sheep.meee();
		if (!sheep.hungry()) {
			grass.push_back(sheep.pop());
		}
	}
}