![\"\"](\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/03\/20260305061721-69a91ff167653.png\")
<\/p>\n<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 （1）\u91c7\u7528\u54c8\u5e0c\u8868\u5b9e\u73b0<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 （2）\u4e8c\u5206\u67e5\u627e\u5b9e\u73b0<\/p>\n
#include <bits\/stdc++.h>
\nusing namespace std;<\/p>\n
#define int long long
\nconst int N = 1e5 + 10;
\nint n, q, t;
\nunordered_map<int, int> mp;
\nsigned main()
\n{
\ncin >> n;
\nfor(int i = 1; i <= n; i++)
\n{
\nint x; cin >> x;
\nmp[x] = i;
\n}
\ncin >> q;
\nwhile(q–)
\n{
\ncin >> t;
\ncout << mp[t] << endl;
\n}
\nreturn 0;
\n } <\/p>\n
#include <bits\/stdc++.h>
\nusing namespace std;<\/p>\n
#define int long long
\nconst int N = 1e5 + 10;
\nstruct node{
\nint index;
\nint value;
\n};
\nbool cmp(node& a,node& b)
\n{
\nreturn a.value < b.value;
\n}
\nint n, q, t;
\nnode a[N];
\nint check(int t)
\n{
\nint l = 1, r = n;
\nwhile(l < r)
\n{
\nint mid = (l + r + 1) >> 1;
\nif(a[mid].value > t) r = mid -1;
\nelse l = mid;
\n}
\nif (a[l].value == t) return a[l].index;
\nelse return 0;
\n}
\nsigned main()
\n{
\ncin >> n;
\nfor(int i = 1; i <= n; i++)
\n{
\ncin >> a[i].value;
\na[i].index = i;
\n}
\nsort(a+1, a+n+1, cmp);
\ncin >> q;
\nwhile(q–)
\n{
\ncin >> t;
\ncout << check(t) << endl;
\n}
\nreturn 0;
\n } <\/p>\n","protected":false},"excerpt":{"rendered":"
\u4e00\u3001\u6838\u5fc3\u601d\u8def（1）\u91c7\u7528\u54c8\u5e0c\u8868\u5b9e\u73b0（2）\u4e8c\u5206\u67e5\u627e\u5b9e\u73b0\u4e8c\u3001\u4ee3\u7801\u5b9e\u73b0#include
\nusing namespace std;#define int long long
\nconst int N 1e5 10;
\nint n, q, t;
\nunordered_map mp;
\nsigned main()
\n{
\ncin >> n;
\nfor(int i 1; i < n; i)
\n{<\/p>\n","protected":false},"author":2,"featured_media":80569,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[55,371,1813,305,427],"topic":[],"class_list":["post-80570","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-server","tag-c","tag-371","tag-1813","tag-305","tag-427"],"yoast_head":"\n