差分a[n] b[n] b[i] += b[i - 1]
作者:
Oct_9
,
2024-04-04 18:56:59
,
所有人可见
,
阅读 6
#include <iostream>
using namespace std;
const int N = 100010;
int n, m;
int a[N], b[N];
void insert(int l, int r, int c)
{
b[l] += c;
b[r + 1] -= c;
}
int main()
{
scanf("%d%d", &n, &m);
for (int i = 1; i <= n; i ++) scanf("%d", &a[i]);
for (int i = 1; i <= n; i ++) insert(i, i, a[i]);
while (m --)
{
int l, r, c;
scanf("%d%d%d", &l, &r, &c);
insert(l, r, c);
}
for (int i = 1; i <= n; i ++) b[i] += b[i - 1];
for (int i = 1; i <= n; i ++) printf("%d ", b[i]);
return 0;
}