#pragma GCC optimize("O3") #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include using namespace std; using ll = long long; using P = pair; using T = tuple; template inline T chmax(T &a, const T b) {return a = (a < b) ? b : a;} template inline T chmin(T &a, const T b) {return a = (a > b) ? b : a;} constexpr int MOD = 1e9 + 7; constexpr int inf = 1e9; constexpr long long INF = 1e18; #define all(a) (a).begin(), (a).end() int dx[] = {1, 0, -1, 0}; int dy[] = {0, 1, 0, -1}; int main(){ cin.tie(0); ios::sync_with_stdio(false); int h, w, q; cin>>h>>w>>q; ll ans = (ll)h * w; map mi; while(q--){ int y, x; cin>>y>>x; if(mi[x] == 0){ ans -= (h - y) + 1; mi[x] = y; } else{ if(mi[x] > y){ ans -= (mi[x] - y); mi[x] = y; } } cout << ans << endl; } return 0; }