题意:给定几种不同的颜色和它的权值,按它的权值排序。
析:排序。
代码如下:
#include <cstdio> #include <string> #include <cstdlib> #include <cmath> #include <iostream> #include <cstring> #include <set> #include <queue> #include <algorithm> #include <vector> #include <map> using namespace std ; typedef long long LL; typedef pair<int, int> P; const int INF = 0x3f3f3f3f; const double inf = 0x3f3f3f3f3f3f3f; const double eps = 1e-8; const int maxn = 1000 + 5; const int dr[] = {0, 0, -1, 1}; const int dc[] = {-1, 1, 0, 0}; int n, m; struct node{ string s; int id; bool operator < (const node &p) const{ return p.id < id; } }; vector<node> v; int main(){ int T; cin >> T; while(T--){ scanf("%d", &n); v.clear(); node u; for(int i = 0; i < n; ++i){ cin >> u.s >> u.id; v.push_back(u); } sort(v.begin(), v.end()); for(int i = 0; i < v.size(); ++i) if(!i) cout << v[i].s; else cout << " " << v[i].s; cout << endl; } return 0; }