回答編集履歴
2
追記
test
CHANGED
|
@@ -7,3 +7,155 @@
|
|
|
7
7
|
1000000000 1000000000 1000000000 1000000000
|
|
8
8
|
|
|
9
9
|
```
|
|
10
|
+
|
|
11
|
+
|
|
12
|
+
|
|
13
|
+
---
|
|
14
|
+
|
|
15
|
+
追記：
|
|
16
|
+
|
|
17
|
+
|
|
18
|
+
|
|
19
|
+
質問に記載のコードについて変数の型を変えただけですが、手元のgcc環境では動作するようでした。
|
|
20
|
+
|
|
21
|
+
|
|
22
|
+
|
|
23
|
+
```bash
|
|
24
|
+
|
|
25
|
+
$ g++ -v
|
|
26
|
+
|
|
27
|
+
gcc version 5.4.0 20160609 (Ubuntu 5.4.0-6ubuntu1~16.04.4)
|
|
28
|
+
|
|
29
|
+
$ cat input
|
|
30
|
+
|
|
31
|
+
4
|
|
32
|
+
|
|
33
|
+
1000000000 1000000000 1000000000 1000000000
|
|
34
|
+
|
|
35
|
+
$ cat input | ./a.out
|
|
36
|
+
|
|
37
|
+
1000000000000000000
|
|
38
|
+
|
|
39
|
+
```
|
|
40
|
+
|
|
41
|
+
|
|
42
|
+
|
|
43
|
+
```C++
|
|
44
|
+
|
|
45
|
+
#include <iostream>
|
|
46
|
+
|
|
47
|
+
#include <stdlib.h>
|
|
48
|
+
|
|
49
|
+
using namespace std;
|
|
50
|
+
|
|
51
|
+
|
|
52
|
+
|
|
53
|
+
int compar(const long long *val1, const long long *val2);
|
|
54
|
+
|
|
55
|
+
|
|
56
|
+
|
|
57
|
+
int main(void)
|
|
58
|
+
|
|
59
|
+
{
|
|
60
|
+
|
|
61
|
+
long long N, i, x = 0, y = 0;
|
|
62
|
+
|
|
63
|
+
cin >> N;
|
|
64
|
+
|
|
65
|
+
long long A[N];
|
|
66
|
+
|
|
67
|
+
|
|
68
|
+
|
|
69
|
+
for (i = 0; i < N; i++)
|
|
70
|
+
|
|
71
|
+
{
|
|
72
|
+
|
|
73
|
+
cin >> A[i];
|
|
74
|
+
|
|
75
|
+
}
|
|
76
|
+
|
|
77
|
+
|
|
78
|
+
|
|
79
|
+
qsort(A, N, sizeof(long long), (int (*)(const void *, const void *))compar);
|
|
80
|
+
|
|
81
|
+
|
|
82
|
+
|
|
83
|
+
for (i = 0; i < N-1; i++)
|
|
84
|
+
|
|
85
|
+
{
|
|
86
|
+
|
|
87
|
+
if (A[i] == A[i+1])
|
|
88
|
+
|
|
89
|
+
{
|
|
90
|
+
|
|
91
|
+
x = A[i];
|
|
92
|
+
|
|
93
|
+
i += 2;
|
|
94
|
+
|
|
95
|
+
break;
|
|
96
|
+
|
|
97
|
+
}
|
|
98
|
+
|
|
99
|
+
}
|
|
100
|
+
|
|
101
|
+
|
|
102
|
+
|
|
103
|
+
for (; i < N-1; i++)
|
|
104
|
+
|
|
105
|
+
{
|
|
106
|
+
|
|
107
|
+
if (A[i] == A[i+1])
|
|
108
|
+
|
|
109
|
+
{
|
|
110
|
+
|
|
111
|
+
y = A[i];
|
|
112
|
+
|
|
113
|
+
break;
|
|
114
|
+
|
|
115
|
+
}
|
|
116
|
+
|
|
117
|
+
}
|
|
118
|
+
|
|
119
|
+
|
|
120
|
+
|
|
121
|
+
cout << x * y << endl;
|
|
122
|
+
|
|
123
|
+
|
|
124
|
+
|
|
125
|
+
return 0;
|
|
126
|
+
|
|
127
|
+
}
|
|
128
|
+
|
|
129
|
+
|
|
130
|
+
|
|
131
|
+
int compar(const long long *val1, const long long *val2)
|
|
132
|
+
|
|
133
|
+
{
|
|
134
|
+
|
|
135
|
+
if (*val1 > *val2)
|
|
136
|
+
|
|
137
|
+
{
|
|
138
|
+
|
|
139
|
+
return -1;
|
|
140
|
+
|
|
141
|
+
}
|
|
142
|
+
|
|
143
|
+
else if (*val1 == *val2)
|
|
144
|
+
|
|
145
|
+
{
|
|
146
|
+
|
|
147
|
+
return 0;
|
|
148
|
+
|
|
149
|
+
}
|
|
150
|
+
|
|
151
|
+
else
|
|
152
|
+
|
|
153
|
+
{
|
|
154
|
+
|
|
155
|
+
return 1;
|
|
156
|
+
|
|
157
|
+
}
|
|
158
|
+
|
|
159
|
+
}
|
|
160
|
+
|
|
161
|
+
```
|
1
入力例誤りの変更
test
CHANGED
|
@@ -1 +1,9 @@
|
|
|
1
|
-
例えば入力値が
|
|
1
|
+
例えば入力値が下記の場合はどうなるでしょうか。
|
|
2
|
+
|
|
3
|
+
```text
|
|
4
|
+
|
|
5
|
+
4
|
|
6
|
+
|
|
7
|
+
1000000000 1000000000 1000000000 1000000000
|
|
8
|
+
|
|
9
|
+
```
|