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41 lines
867 B
41 lines
867 B
#include <bits/stdc++.h>
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using namespace std;
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int main() {
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//输入+输出重定向
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freopen("../1379.in", "r", stdin);
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freopen("../1379.out", "w", stdout);
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int n, m;
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cin >> n;
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vector<int> v1;
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for (int i = 0; i < n; ++i) {
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int c;
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cin >> c;
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v1.push_back(c);
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}
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cin >> m;
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for (int k = 0; k < m; ++k) {
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int cmd, i, v;
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cin >> cmd >> i;
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switch (cmd) {
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case 1:
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cout << v1[i-1] << endl;
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break;
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case 2:
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cin >> v;
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v1.insert(std::begin(v1) + i - 1, v);
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break;
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case 3:
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v1.erase(std::begin(v1) + i - 1);
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break;
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}
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}
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//关闭文件
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fclose(stdin);
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fclose(stdout);
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return 0;
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}
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