import java.util.*;
import java.io.*;
public class Main
{
static class Reader {
final private int BUFFER_SIZE = 1 << 16;
private DataInputStream din;
private byte[] buffer;
private int bufferPointer, bytesRead;
public Reader()
{
din = new DataInputStream(System.in);
buffer = new byte[BUFFER_SIZE];
bufferPointer = bytesRead = 0;
}
public Reader(String file_name) throws IOException
{
din = new DataInputStream(
new FileInputStream(file_name));
buffer = new byte[BUFFER_SIZE];
bufferPointer = bytesRead = 0;
}
public String readLine() throws IOException
{
byte[] buf = new byte[64]; // line length
int cnt = 0, c;
while ((c = read()) != -1) {
if (c == '\n') {
if (cnt != 0) {
break;
}
else {
continue;
}
}
buf[cnt++] = (byte)c;
}
return new String(buf, 0, cnt);
}
public int nextInt() throws IOException
{
int ret = 0;
byte c = read();
while (c <= ' ') {
c = read();
}
boolean neg = (c == '-');
if (neg)
c = read();
do {
ret = ret * 10 + c - '0';
} while ((c = read()) >= '0' && c <= '9');
if (neg)
return -ret;
return ret;
}
public long nextLong() throws IOException
{
long ret = 0;
byte c = read();
while (c <= ' ')
c = read();
boolean neg = (c == '-');
if (neg)
c = read();
do {
ret = ret * 10 + c - '0';
} while ((c = read()) >= '0' && c <= '9');
if (neg)
return -ret;
return ret;
}
public double nextDouble() throws IOException
{
double ret = 0, div = 1;
byte c = read();
while (c <= ' ')
c = read();
boolean neg = (c == '-');
if (neg)
c = read();
do {
ret = ret * 10 + c - '0';
} while ((c = read()) >= '0' && c <= '9');
if (c == '.') {
while ((c = read()) >= '0' && c <= '9') {
ret += (c - '0') / (div *= 10);
}
}
if (neg)
return -ret;
return ret;
}
private void fillBuffer() throws IOException
{
bytesRead = din.read(buffer, bufferPointer = 0,
BUFFER_SIZE);
if (bytesRead == -1)
buffer[0] = -1;
}
private byte read() throws IOException
{
if (bufferPointer == bytesRead)
fillBuffer();
return buffer[bufferPointer++];
}
public void close() throws IOException
{
if (din == null)
return;
din.close();
}
}
public static void main(String args[]) throws IOException
{
Reader sc = new Reader();
int n = sc.nextInt();
int a[] = new int[n];
long ans = 0;
for(int i = 0; i < n; i++)
{
a[i] = sc.nextInt();
ans += a[i];
if(i != n - 1 && i != 0)
{
ans += a[i];
}
}
if(n == 1) ans = 0;
System.out.println(ans);
}
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
57 ms |
8316 KB |
Output is correct |
2 |
Correct |
87 ms |
10316 KB |
Output is correct |
3 |
Correct |
87 ms |
10704 KB |
Output is correct |
4 |
Correct |
90 ms |
10404 KB |
Output is correct |
5 |
Correct |
93 ms |
10588 KB |
Output is correct |
6 |
Correct |
88 ms |
10364 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
57 ms |
8096 KB |
Output is correct |
2 |
Correct |
57 ms |
8156 KB |
Output is correct |
3 |
Correct |
58 ms |
8284 KB |
Output is correct |
4 |
Correct |
67 ms |
8368 KB |
Output is correct |
5 |
Correct |
58 ms |
8232 KB |
Output is correct |
6 |
Incorrect |
61 ms |
8328 KB |
Output isn't correct |
7 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
57 ms |
8316 KB |
Output is correct |
2 |
Correct |
87 ms |
10316 KB |
Output is correct |
3 |
Correct |
87 ms |
10704 KB |
Output is correct |
4 |
Correct |
90 ms |
10404 KB |
Output is correct |
5 |
Correct |
93 ms |
10588 KB |
Output is correct |
6 |
Correct |
88 ms |
10364 KB |
Output is correct |
7 |
Correct |
57 ms |
8096 KB |
Output is correct |
8 |
Correct |
57 ms |
8156 KB |
Output is correct |
9 |
Correct |
58 ms |
8284 KB |
Output is correct |
10 |
Correct |
67 ms |
8368 KB |
Output is correct |
11 |
Correct |
58 ms |
8232 KB |
Output is correct |
12 |
Incorrect |
61 ms |
8328 KB |
Output isn't correct |
13 |
Halted |
0 ms |
0 KB |
- |