#pragma GCC target("avx2") #pragma GCC optimize("O3") #pragma GCC optimize("unroll-loops") #include #include #include #include #include //#include //using namespace atcoder; using namespace std; using i32 = int_fast32_t; using i64 = int_fast64_t; using usize = size_t; using u32 = uint_fast32_t; using u64 = uint_fast64_t; using i128 = __int128_t; using u128 = __uint128_t; template using vec = vector; #define rep(i, n) for (i64 i = 0; i < (i64)(n); ++i) #define all(a) (a).begin(),(a).end() #define rall(a) (a).rbegin(),(a).rend() #define len(hoge) (i64)((hoge).size()) using P = pair; void solve(){ } int main(){ ios::sync_with_stdio(false); std::cin.tie(nullptr); i64 h,w,q; cin >> h >> w >> q; map mp; i64 ans = h * w; rep(i,q){ i64 y,x; cin >> y >> x; x--,y--; if(mp.count(x)){ if(mp[x] > y){ ans -= mp[x] - y; mp[x] = y; } }else{ mp[x] = y; ans -= h - mp[x]; } cout << ans << endl; } }