#include <iostream>
#include <queue>
#include <stack>
#include <algorithm>
#include <string.h>
#include <functional>
#define task ""
#define size() size() * 1ll
#define all(x) (x).begin(), (x).end()
#define allr(x, sz) (x) + 1, (x) + 1 + sz
#define pb push_back
#define pii pair<int, int>
#define fi first
#define se second
#define MASK(x) (1LL << (x))
#define BIT(x,i) (((x) >> (i)) & 1)
#define numbit(x) __builtin_popcountll(x)
using namespace std;
const int N = 1e6 + 1;
const int M = 1e3 + 1;
const long long mod = 1e9 + 7;
const long long oo = 1e18 + 7;
typedef vector<int> vi;
typedef vector<pii> vii;
typedef long long ll;
template<class t>
bool mini(t &x,t y) {
if (y < x) {
x = y;
return 1;
}
return 0;
}
template<class t>
bool maxi(t &x,t y) {
if (x < y) {
x = y;
return 1;
}
return 0;
}
int n, m;
int a[N];
ll lazy[N];
struct node {
ll maxlef, minlef, maxrig, minrig, ans;
bool ok;
node(const int &_x = 0) {
maxlef = minlef = maxrig = minrig = _x;
ans = 0;
ok = 1;
}
} st[4 * N];
node merge(node lef, node rig) {
node res(0);
ll cmax = max(lef.maxrig, rig.maxlef);
ll cmin = min(lef.minrig, rig.minlef);
res.maxlef = lef.maxlef;
res.minlef = lef.minlef;
res.maxrig = rig.maxrig;
res.minrig = rig.minrig;
if (cmax - cmin > lef.maxrig - lef.minrig + rig.maxlef - rig.minlef) {
res.ans = lef.ans - lef.maxrig + lef.minrig + rig.ans - rig.maxlef + rig.minlef + cmax - cmin;
if (lef.ok) {
maxi(res.maxlef, cmax);
mini(res.minlef, cmin);
}
if (rig.ok) {
maxi(res.maxrig, cmax);
mini(res.minrig, cmin);
}
} else {
res.ans = lef.ans + rig.ans;
res.ok = 0;
}
return res;
}
void build(int id, int l, int r) {
if (l == r) {
st[id] = node(a[l]);
return ;
}
int mid = l + r >> 1;
if (l <= mid) build(id << 1, l, mid);
if (mid + 1 <= r) build(id << 1 | 1, mid + 1, r);
st[id] = merge(st[id << 1], st[id << 1 | 1]);
}
void add(int id, ll &val) {
st[id].maxlef += val;
st[id].minlef += val;
st[id].maxrig += val;
st[id].minrig += val;
lazy[id] += val;
}
void down(int &id, int &l, int &r) {
ll &x = lazy[id];
add(id << 1, x);
add(id << 1 | 1, x);
x = 0;
}
void adj(int id, int l, int r, int u, int v, ll val) {
if (r < u || v < l) return;
if (u <= l && r <= v) {
add(id, val);
return;
}
int mid = l + r >> 1;
down(id, l, r);
adj(id << 1, l, mid, u, v, val);
adj(id << 1 | 1, mid + 1, r, u, v, val);
st[id] = merge(st[id << 1], st[id << 1 | 1]);
}
void solve(int test = -1) {
cin >> n >> m;
for (int i = 1; i <= n; i++) {
cin >> a[i];
}
build(1, 1, n);
while (m--) {
int l, r;
ll v;
cin >> l >> r >> v;
adj(1, 1, n, l, r, v);
cout << st[1].ans << '\n';
}
}
int32_t main() {
ios_base::sync_with_stdio(0);
cin.tie(0);
// freopen(task".inp", "r", stdin);
// freopen(task".out", "w", stdout);
int T = 1;
// cin >> T;
for (int i = 1; i <= T; i++) {
solve(i);
}
return 0;
}
/*
*/
Compilation message
Main.cpp: In function 'void build(int, int, int)':
Main.cpp:90:17: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
90 | int mid = l + r >> 1;
| ~~^~~
Main.cpp: In function 'void adj(int, int, int, int, int, ll)':
Main.cpp:115:17: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
115 | int mid = l + r >> 1;
| ~~^~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
72 ms |
188108 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
72 ms |
188108 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
72 ms |
188108 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
