Submission #947479

#	Time	Username	Problem	Language	Result	Execution time	Memory
947479		dilanyan	Intergalactic ship (IZhO19_xorsum)	C++17	17 / 100	2037 ms	1628 KiB

xorsum

//-------------dilanyan------------\\ 
 
#define _CRT_SECURE_NO_WARNINGS
#include<bits/stdc++.h>
#include<stdio.h>
using namespace std;
 
//------------------KarginDefines--------------------\\ 
 
#define ll long long
#define pb push_back
#define all(u) (u).begin(), (u).end()
#define pqueue priority_queue
#define upper upper_bound
#define lower lower_bound
#define umap unordered_map
#define uset unordered_set
#define Kargin ios_base::sync_with_stdio(false);cin.tie(NULL);
#define Usaco freopen(".in", "r", stdin); freopen(".out", "w", stdout);
 
 
//-------------------KarginConstants------------------\\ 
 
const ll mod = 1000000007;
const ll inf = 1e9 + 15;
 
//-------------------KarginCode------------------------\\ 
 
const int N = 1005,M = 100005;
ll a[N];

struct query {
    int l, r, x;
};

query q[M];


void KarginSolve() {
    int n; cin >> n;
    for (int i = 0;i < n;i++) cin >> a[i];
    int m; cin >> m;
    for (int i = 0;i < m;i++) {
        cin >> q[i].l >> q[i].r >> q[i].x;
        q[i].l--;
    }
    ll ans = 0;
    for (int mask = 0;mask < (1 << m);mask++) {
        for (int j = 0;j < m;j++) {
            if (mask & (1 << j)) {
                for (int i = q[j].l;i < q[j].r;i++) a[i] ^= q[j].x;
            }
        }
        for (int i = 0;i < n;i++) {
            ll sum = 0;
            for (int j = i;j < n;j++) {
                sum += a[j];
                ans += (sum * sum) % mod;
                ans %= mod;
            }
        }
        for (int j = 0;j < m;j++) {
            if (mask & (1 << j)) {
                for (int i = q[j].l;i < q[j].r;i++) a[i] ^= q[j].x;
            }
        }
    }
    cout << ans << '\n';
}
 
int main() {
    Kargin;
    int test = 1;
    //cin >> test;
    while (test--) {
        KarginSolve();
    }
    return 0;
}

Compilation message (stderr)

xorsum.cpp:1:1: warning: multi-line comment [-Wcomment]
    1 | //-------------dilanyan------------\\
      | ^
xorsum.cpp:8:1: warning: multi-line comment [-Wcomment]
    8 | //------------------KarginDefines--------------------\\
      | ^
xorsum.cpp:22:1: warning: multi-line comment [-Wcomment]
   22 | //-------------------KarginConstants------------------\\
      | ^
xorsum.cpp:27:1: warning: multi-line comment [-Wcomment]
   27 | //-------------------KarginCode------------------------\\
      | ^

• Subtask 1: 4 / 4
• Subtask 2: 5 / 5
• Subtask 3: 0 / 6
• Subtask 4: 0 / 9
• Subtask 5: 8 / 8
• Subtask 6: 0 / 11
• Subtask 7: 0 / 19
• Subtask 8: 0 / 30
• Subtask 9: 0 / 8