《一维差分》

#include <bits/stdc++.h>

using namespace std;

const int N = 100010;

int a[N], b[N];

void insert(int l, int r, int c)
{
    b[l] += c;
    b[r + 1] -= c;
}

int main()
{
    ios::sync_with_stdio(false);
    cin.tie(0);
    
    int n, m;
    cin >> n >> m;
    
    for (int i = 1; i <= n; i ++) cin >> a[i], insert(i, i, a[i]);
    
    while (m --)
    {
        int l, r, c;
        cin >> l >> r >> c;
        
        insert(l, r, c);
    }
    
    for (int i = 1; i <= n; i ++) b[i] += b[i - 1], cout << b[i] << ' ';
    
    return 0;
}