#include #define rep(i, a, n) for(int i = a; i < n; i++) #define repr(i, a, b) for(int i = a; i >= b; i--) #define int long long #define all(a) a.begin(), a.end() #define chmax(x, y) x = max(x, y) #define chmin(x, y) x = min(x, y) using namespace std; typedef pair P; const int mod = 1000000007; const int INF = 1e18; struct CumulativeSum2D{ vector > data; CumulativeSum2D(int H, int W) : data(H + 1, vector(W + 1, 0)) {} void add(int x, int y, int z){ ++x, ++y; if(x >= data.size() || y >= data[0].size()) return; data[x][y] += z; } void build(){ for(int i = 1; i < data.size(); i++) { for(int j = 1; j < data[i].size(); j++) { data[i][j] += data[i][j - 1] + data[i - 1][j] - data[i - 1][j - 1]; } } } int query(int sx, int sy, int gx, int gy){ return (data[gx][gy] - data[sx][gy] - data[gx][sy] + data[sx][sy]); } }; signed main(){ ios::sync_with_stdio(false); cin.tie(0); int n, m; cin >> n >> m; CumulativeSum2D cs(m, m); rep(i, 0, m){ rep(j, 0, m){ int a; cin >> a; cs.add(i, j, a); } } cs.build(); while(n--){ int x, y; cin >> x >> y; x--; y--; int ans = 0; for(int i = 0; i <= x; i++){ for(int j = 0; j <= y; j++){ for(int k = x; k < m; k++){ for(int l = y; l < m; l++){ int tmp = cs.query(i, j, k + 1, l + 1); if(tmp == 0) ans++; } } } } cout << ans << endl; } }