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797. 差分
https://www.acwing.com/problem/content/submission/code_detail/9150952/
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AcWing/797/797.cpp
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27
AcWing/797/797.cpp
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#include <bits/stdc++.h>
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using std::cin;
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using std::cout;
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using std::endl;
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int n, m, l, r, c, b[100005];
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int main() {
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cin >> n >> m;
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for (int i = 1; i <= n; i++) {
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cin >> c;
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b[i] += c;
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b[i + 1] -= c;
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}
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while (m--) {
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cin >> l >> r >> c;
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b[l] += c;
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b[r + 1] -= c;
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}
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for (int i = 1; i <= n; i++) {
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b[i] += b[i - 1];
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cout << b[i] << ' ';
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}
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cout << endl;
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return 0;
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}
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