PAT 1028 List Sorting
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Excel can sort records according to any column. Now you are supposed to imitate this function.
Input Specification:
Each input file contains one test case. For each case, the first line contains two integers N (≤) and C, where N is the number of records and C is the column that you are supposed to sort the records with. Then N lines follow, each contains a record of a student. A student‘s record consists of his or her distinct ID (a 6-digit number), name (a string with no more than 8 characters without space), and grade (an integer between 0 and 100, inclusive).
Output Specification:
For each test case, output the sorting result in N lines. That is, if C = 1 then the records must be sorted in increasing order according to ID‘s; if C = 2 then the records must be sorted in non-decreasing order according to names; and if C = 3 then the records must be sorted in non-decreasing order according to grades. If there are several students who have the same name or grade, they must be sorted according to their ID‘s in increasing order.
Sample Input 1:
3 1
000007 James 85
000010 Amy 90
000001 Zoe 60
Sample Output 1:
000001 Zoe 60
000007 James 85
000010 Amy 90
Sample Input 2:
4 2
000007 James 85
000010 Amy 90
000001 Zoe 60
000002 James 98
Sample Output 2:
000010 Amy 90
000002 James 98
000007 James 85
000001 Zoe 60
Sample Input 3:
4 3
000007 James 85
000010 Amy 90
000001 Zoe 60
000002 James 90
Sample Output 3:
000001 Zoe 60
000007 James 85
000002 James 90
000010 Amy 90
#include<bits/stdc++.h> using namespace std; typedef long long ll; #define MAXN 500 struct node{ string id; string name; int point; }; bool comp1(node a,node b){ return a.id < b.id; } bool comp2(node a,node b){ if(a.name==b.name) return a.id < b.id; return a.name < b.name; } bool comp3(node a,node b){ if(a.point==b.point) return a.id < b.id; return a.point < b.point; } int main(){ int n,c; cin >> n >> c; node nod[n]; for(int i=0;i < n;i++){ char xid[10]; char xname[10]; int g; scanf("%s%s%d",xid,xname,&g); // cin >> xid >> xname >> g; nod[i].id = xid; nod[i].name = xname; nod[i].point = g; } if(c == 1){sort(nod,nod+n,comp1);} else if(c == 2){sort(nod,nod+n,comp2);} else if(c == 3){sort(nod,nod+n,comp3);} for(int i=0;i < n;i++){ // cout << nod[i].id << " " << nod[i].name << " " << nod[i].point << endl; printf("%s %s %d\n",nod[i].id.c_str(),nod[i].name.c_str(),nod[i].point); } return 0; }
char 我开成6和8就错了??题目给的条件不对把,还是要稍微开大一点。。
当卡string输入的时候可以用char代替输入,然后再用string等于就好了,嘿嘿
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