Submission #844828
Source Code Expand
/**
* author: itmo1
* created: 21.08.2016 15:05:23
**/
#define __USE_MINGW_ANSI_STDIO 0
#include <bits/stdc++.h>
#define F first
#define S second
#define pb push_back
#define mp make_pair
#define forn(i, n) for(int i = 0 ; (i) < (n) ; ++i)
#define eprintf(...) fprintf(stderr, __VA_ARGS__),fflush(stderr)
#define sz(a) ((int)(a).size())
#define all(a) (a).begin(),a.end()
#define pw(x) (1LL<<(x))
using namespace std;
typedef long long ll;
typedef double dbl;
typedef vector<int> vi;
typedef pair<int, int> pi;
const int inf = 1.01e9;
const dbl eps = 1e-9;
/* --- main part --- */
const int N = 1e5 + 10;
int a[N];
int main()
{
#ifdef home
assert(freopen("1.in", "r", stdin));
assert(freopen("1.out", "w", stdout));
#endif
int n;
scanf("%d", &n);
forn(i, n) scanf("%d", a + i);
ll res = 0;
forn(i, n)
{
res += a[i] >> 1;
a[i] &= 1;
}
forn(i, n - 1) if (a[i] && a[i + 1])
{
res++;
a[i] = 0;
a[i + 1] = 0;
}
printf("%lld\n", res);
#ifdef home
eprintf("time = %d ms\n", (int)(clock() * 1000. / CLOCKS_PER_SEC));
#endif
return 0;
}
Submission Info
Submission Time
2016-08-21 21:07:46+0900
Task
B - Simplified mahjong
User
enot
Language
C++14 (GCC 5.4.1)
Score
0
Code Size
1242 Byte
Status
WA
Exec Time
26 ms
Memory
640 KB
Compile Error
./Main.cpp: In function ‘int main()’:
./Main.cpp:42:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
scanf("%d", &n);
^
./Main.cpp:43:34: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
forn(i, n) scanf("%d", a + i);
^
Judge Result
Set Name
Sample
All
Score / Max Score
0 / 0
0 / 400
Status
Set Name
Test Cases
Sample
s1.txt, s2.txt
All
01.txt, 02.txt, 03.txt, 04.txt, 05.txt, 06.txt, 07.txt, 08.txt, 09.txt, 10.txt, 11.txt, 12.txt, 13.txt, 14.txt, 15.txt, 16.txt, 17.txt, 18.txt, 19.txt, 20.txt, 21.txt, 22.txt, s1.txt, s2.txt
Case Name
Status
Exec Time
Memory
01.txt
WA
26 ms
640 KB
02.txt
WA
26 ms
640 KB
03.txt
WA
26 ms
640 KB
04.txt
WA
22 ms
640 KB
05.txt
WA
23 ms
640 KB
06.txt
WA
22 ms
640 KB
07.txt
WA
24 ms
640 KB
08.txt
WA
26 ms
640 KB
09.txt
WA
26 ms
640 KB
10.txt
WA
26 ms
640 KB
11.txt
AC
17 ms
640 KB
12.txt
AC
26 ms
640 KB
13.txt
AC
25 ms
640 KB
14.txt
AC
25 ms
640 KB
15.txt
AC
17 ms
640 KB
16.txt
WA
25 ms
640 KB
17.txt
WA
26 ms
640 KB
18.txt
AC
4 ms
256 KB
19.txt
AC
4 ms
256 KB
20.txt
AC
4 ms
256 KB
21.txt
AC
4 ms
256 KB
22.txt
AC
4 ms
256 KB
s1.txt
AC
4 ms
256 KB
s2.txt
AC
4 ms
256 KB