好久没做题了,今天为了周日的地大比赛,热热身,把pku的1002这个简单题切了,虽然先tle了一次。。。
教训:
对于这种模拟性质的题,应该尽可能的让思路简单一点,不要想的太复杂;
另外,最好一个模块一个模块的写,编写边注释,这样思路比较不容易乱。
Simbaforrest
2007.12.6
代码比较简单,我都加了注释:
1 #include <stdio.h>
2 #include <stdlib.h>
3 #include <string.h>
4 const int maxn=100010;
5 typedef struct tagNum
6 {
7 int num;
8 char in[50];
9 }Num;
10 typedef struct tagTel
11 {
12 Num tel[maxn];
13 int t;
14 }Tel;
15 Tel T;
16
17 int cmp(const void *a, const void *b)
18 {
19 Num *c = (Num *)a;
20 Num *d = (Num *)b;
21 return c->num - d->num;
22 }
23
24 void Format(Num &N)
25 {
26 char *pMove,*pSet;
27 pMove = pSet = N.in;
28 while(pMove != NULL )
29 {
30 if(pSet - N.in == 7)
31 break;
32 //change pMove to number
33 switch(*pMove)
34 {
35 case 'A':case 'B':case 'C':
36 *pMove = '2';break;
37 case 'D':case 'E':case 'F':
38 *pMove = '3';break;
39 case 'G':case 'H':case 'I':
40 *pMove = '4';break;
41 case 'J':case 'K':case 'L':
42 *pMove = '5';break;
43 case 'M':case 'N':case 'O':
44 *pMove = '6';break;
45 case 'P':case 'R':case 'S':
46 *pMove = '7';break;
47 case 'T':case 'U':case 'V':
48 *pMove = '8';break;
49 case 'W':case 'X':case 'Y':
50 *pMove = '9';break;
51 }
52
53 //set the pSet
54 if(*pMove<='9' && *pMove>='0')
55 {
56 *pSet = *pMove;
57 pSet++;
58 //lbl_3++;
59 }
60
61 //move the pMove
62 pMove++;
63 }
64 //set the end of char
65 N.in[7]='\0';
66
67 //set value of tel
68 int sum = 0;
69 int w = 1;
70 for(int i=6; i>=0; i--)
71 {
72 //if(i!=3)
73 {
74 sum+=(N.in[i]-'0')*w;
75 w*=10;
76 }
77 }
78 N.num = sum;
79 //while(1);
80 }
81
82 bool out()
83 {
84 bool has = 0;
85 int time = 1;
86 for(int i=1; i<=T.t; i++)
87 {
88 if(i!=T.t)
89 {
90 if(T.tel[i].num == T.tel[i-1].num)
91 {
92 time++;
93 }
94 else
95 {
96 if(time>1)
97 {
98 has = 1;
99 for(int j=0;j<7;j++)
100 {
101 if(j==3)
102 printf("-");
103 printf("%c",T.tel[i-1].in[j]);
104 }
105 printf(" %d\n",time);
106 time = 1;
107 }
108 }
109 }
110 else
111 {
112 if(time>1)
113 {
114 has = 1;
115 for(int j=0;j<7;j++)
116 {
117 if(j==3)
118 printf("-");
119 printf("%c",T.tel[i-1].in[j]);
120 }
121 printf(" %d\n",time);
122 time = 1;
123 }
124 }
125 }
126 return has;
127 }
128
129 int main()
130 {
131 int t;
132 while(scanf("%d",&t)!=EOF)
133 {
134 T.t = t;
135 int i=0;
136 while(t--)
137 {
138 scanf("%s",T.tel[i].in);
139 Format(T.tel[i]);
140 i++;
141 }
142 qsort(T.tel,T.t,sizeof(Num),cmp);
143 if(!out())
144 printf("No duplicates.\n");
145 }
146 return 0;
147 }
148
下面是littlekid的:
1 /*******************************************
2 Source Code
3 Problem: 1002 User: LittleKid
4 Memory: 1248K Time: 1357MS
5 Language: G++ Result: Accepted
6 ************************************************/
7 # include <stdio.h>
8 # include <stdlib.h>
9 # include <string.h>
10
11 const int tt[]={0,1,10,100,1000,10000,100000,1000000,10000000};
12
13 int n;
14 char a[n][7];
15 int num[n];
16
17 void init()
18 {
19 scanf("%d",&n);
20 for (int i=0;i<n;i++)
21 {
22 int k=0;
23 while (k<7)
24 {
25 scanf("%c",&a[i][k]);
26 if (a[i][k]!='-' && a[i][k]!='\n') k++;
27 }
28 }
29 }
30
31 int cmp(const void *a,const void *b)
32 {
33 return (*(int *)a-*(int *)b);
34 }
35
36 void trans()
37 {
38 //Turn upcase chars into numbers in a according to the rules.
39 for (int i=0;i<n;i++)
40 {
41 num[i]=0;
42 for (int j=0;j<7;j++)
43 {
44 switch (a[i][j])
45 {
46 case 'A':case 'B':case 'C':a[i][j]='2';
47 break;
48 case 'D':case 'E':case 'F':a[i][j]='3';
49 break;
50 case 'G':case 'H':case 'I':a[i][j]='4';
51 break;
52 case 'J':case 'K':case 'L':a[i][j]='5';
53 break;
54 case 'M':case 'N':case 'O':a[i][j]='6';
55 break;
56 case 'P':case 'R':case 'S':a[i][j]='7';
57 break;
58 case 'T':case 'U':case 'V':a[i][j]='8';
59 break;
60 case 'W':case 'X':case 'Y':a[i][j]='9';
61 break;
62 }
63 num[i]+=(a[i][j]-'0')*tt[7-j];
64 }
65 }
66 }
67
68 void output()
69 {
70 int t;
71 bool flag = true;
72 t=1;
73 for (int i=1;i<n;i++)
74 {
75 if (num[i]!=num[i-1])
76 {
77 if (t>1)
78 {
79 printf("%03d-%04d %d\n",num[i-1]/10000,num[i-1]%10000,t);
80 flag=false;
81 }
82 t=0;
83 }
84 t++;
85 }
86 if (t>1)
87 {
88 printf("%03d-%04d %d\n",num[n-1]/10000,num[n-1]%10000,t);
89 flag=false;
90 }
91 if (flag) printf("No duplicates.\n");
92 }
93
94 int main()
95 {
96 init();
97 trans();
98 qsort(num,n,sizeof(num[0]),cmp);
99 output();
100 return 0;
101 }
102
posted on 2007-12-06 19:27
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