Submission #1071722

#	Time	Username	Problem	Language	Result	Execution time	Memory
1071722		vjudge1	Addk (eJOI21_addk)	C++17	0 / 100	101 ms	1624 KiB

Main

#include <iostream>
#include <vector>
using namespace std;
using ll = long long int;

const int N = 100002;
ll n, K;
int a[N], q;
short int op;

int main() {
	ios::sync_with_stdio(false);
	cin.tie(0); cout.tie(0);

	cin >> n >> K;
	for (int i = 1; i <= n; ++i)
		cin >> a[i];

	vector<ll> pref(n+1);
	for (int i = 1; i <= n; ++i)
		pref[i] = pref[i - 1] + a[i];

	q; cin >> q;
	for (int tc = 1; tc <= q; ++tc) {
		cin >> op;
		if (op == 1) {
			int x; cin >> x;
			continue;
		} 
		else {
			int l, r, m;
			cin >> l >> r >> m;

			ll sum = 0;
			while (l + m - 2 < r) 
				sum += pref[l + m - 2] - pref[l++ - 1];

			cout << sum << '\n';
		}
	}
	return 0;
}

Compilation message (stderr)

Main.cpp: In function 'int main()':
Main.cpp:23:2: warning: statement has no effect [-Wunused-value]
   23 |  q; cin >> q;
      |  ^
Main.cpp:36:36: warning: operation on 'l' may be undefined [-Wsequence-point]
   36 |     sum += pref[l + m - 2] - pref[l++ - 1];
      |                                   ~^~

• Subtask 1: 0 / 36
• Subtask 2: 0 / 56
• Subtask 3: 0 / 8