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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#505779 | #9104. Zayin and Forest | WendyChen | RE | 0ms | 0kb | C++20 | 1.6kb | 2024-08-05 11:17:50 | 2024-08-05 11:17:50 |
answer
#include <bits/stdc++.h>
using namespace std;
#define int long long
#define endl '\n'
#define base 191
#define mod 1145141
const int N = 1e7 + 10;
int n, m;
int tree[N];
int op[N], opa[N], opb[N];
vector<int> nums;
int lowbit(int x) {
return x & -x;
}
void add(int pos, int val) { // tree为树状数组
while (pos <= n) { // 不能越界
tree[pos] += val;
pos += lowbit(pos);
}
}
int query(int x) { // a[1]..a[x]的和
int ans = 0;
while (x >= 1) {
ans = ans + tree[x];
x = x - lowbit(x);
}
return ans;
}
int query(int l, int r) { // 前缀相减
return query(r) - query(l - 1);//求的是(l,r)里面的所有数的和
}
void solve() {
cin >> n >> m;
for (int i = 1; i <= m; ++i) {
cin >> op[i] >> opa[i] >> opb[i];
if (op[i] == 1) {
for(int j = opa[i]; j <= n; j += lowbit(j)) {
nums.push_back(j);
}
}
else {
nums.push_back(opa[i]);
nums.push_back(opb[i]);
}
}
sort(nums.begin(), nums.end());
nums.erase(unique(nums.begin(), nums.end()), nums.end());
for (int i = 1; i <= m; ++i) {
if (op[i] == 1) {
for (int j = opa[i]; j <= n; j += lowbit(j)) {
int y = lower_bound(nums.begin(), nums.end(), j) - nums.begin() + 1;
add(y, opb[i]);
}
}
else {
int l = lower_bound(nums.begin(), nums.end(), opa[i]) - nums.begin() + 1;
int r = lower_bound(nums.begin(), nums.end(), opb[i]) - nums.begin() + 1;
cout << query(l, r) << endl;
}
}
}
signed main() {
ios::sync_with_stdio(false), cin.tie(0), cout.tie(0);
int T = 1;
//cin >> T;
while (T--) {
solve();
}
}
Details
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Test #1:
score: 0
Runtime Error
input:
1000000000 20000 2 384578735 526547442 1 64211261 592970906 1 512065247 448267721 1 44993150 127180320 1 880319036 927623947 1 170536687 572121854 1 896600029 804033011 1 666246328 754201635 1 654066651 179982083 2 240989825 984888006 2 372004567 858916479 2 76127818 98606736 1 181794163 902842353 1...