제출 #520113

#제출 시각아이디문제언어결과실행 시간메모리
520113shmadIntergalactic ship (IZhO19_xorsum)C++17
9 / 100
2075 ms2636 KiB
    #pragma GCC optimize("O3", "unroll-loops") // "Ofast"
    #pragma GCC target("avx2", "bmi", "bmi2", "lzcnt", "popcnt") 
     
    #include <bits/stdc++.h>
     
    #define int long long
    #define vt vector
    #define pb push_back
    #define all(x) (x).begin(), (x).end()
    #define sz(x) (int)(x).size()
    #define ff first
    #define ss second
    #define dbg(x) cerr << #x << " = " << x << '\n'
     
    using namespace std;
    using ll = long long;
    using pii = pair<int, int>;
    using vvi = vt< vt<int> >;
     
    const int N = 1e6 + 5, mod = 1e9 + 7, inf = 1e18 + 7, B = 500, LIM = (1ll << 60);
    const double eps = 1e-6;
     
    int n, q, a[N], l[N], r[N], x[N];
     
    bool bit (int x, int i) {
    	return (x >> i & 1);
    }
     
    int add (int a, int b) {
    	a = (a + b) % mod;
    	return a;
    }
     
    int del (int a, int b) {
    	a = (a - b + mod) % mod;
    	return a;
    }
     
    int mul (int a, int b) {
    	a = (a % mod) * (b % mod) % mod;
    	return a;
    }
     
    void upd (vt<int> v) {
    	int xr = 0;
    	for (int i = 1; i <= n; i++) xr ^= v[i], a[i] ^= xr;
    }
     
    void solve () {
    	cin >> n;
    	for (int i = 1; i <= n; i++) cin >> a[i];
    	cin >> q;
    	for (int i = 0; i < q; i++) cin >> l[i] >> r[i] >> x[i];
    	int ans = 0;
      	vt<int> xr(n + 2);
    	for (int mask = 0; mask < (1 << q); mask++) {
          	fill(all(xr), 0);
    		for (int i = 0; i < q; i++) {
    			if (bit(mask, i)) xr[l[i]] ^= x[i], xr[r[i] + 1] ^= x[i];
    		}
    		upd(xr);
    		for (int i = 1; i <= n; i++) {
    			int sum = 0;
    			for (int j = i; j <= n; j++) sum += a[j], ans = add(ans, mul(sum, sum));
    		}
    		upd(xr);
    	}
    	cout << ans;
    	cout << '\n';
    }
     
    bool testcases = 0;
                      
    signed main() {
    #ifdef ONLINE_JUDGE
    	freopen(".in", "r", stdin);
    	freopen(".out", "w", stdout);
    #endif
        cin.tie(0) -> sync_with_stdio(0);
        int test = 1;
        if (testcases) cin >> test;
        for (int cs = 1; cs <= test; cs++) {
            solve();
        }
    }
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