| Caso # | Resultado | Tiempo | Memoria |
|---|---|---|---|
| #1 |
Error de compilación
Main.java:116: error: incompatible types: <null> cannot be converted to int
int mag = null;
^
Main.java:127: error: bad operand types for binary operator '=='
if(mag == null){
^
first type: int
second type: <null>
2 errors
|
||
| #2 |
Error de compilación
Main.java:116: error: incompatible types: <null> cannot be converted to int
int mag = null;
^
Main.java:127: error: bad operand types for binary operator '=='
if(mag == null){
^
first type: int
second type: <null>
2 errors
|
||
| #3 |
Error de compilación
Main.java:116: error: incompatible types: <null> cannot be converted to int
int mag = null;
^
Main.java:127: error: bad operand types for binary operator '=='
if(mag == null){
^
first type: int
second type: <null>
2 errors
|
||
| #4 |
Error de compilación
Main.java:116: error: incompatible types: <null> cannot be converted to int
int mag = null;
^
Main.java:127: error: bad operand types for binary operator '=='
if(mag == null){
^
first type: int
second type: <null>
2 errors
|
||
| #5 |
Error de compilación
Main.java:116: error: incompatible types: <null> cannot be converted to int
int mag = null;
^
Main.java:127: error: bad operand types for binary operator '=='
if(mag == null){
^
first type: int
second type: <null>
2 errors
|
||
| #6 |
Error de compilación
Main.java:116: error: incompatible types: <null> cannot be converted to int
int mag = null;
^
Main.java:127: error: bad operand types for binary operator '=='
if(mag == null){
^
first type: int
second type: <null>
2 errors
|
||
| #7 |
Error de compilación
Main.java:116: error: incompatible types: <null> cannot be converted to int
int mag = null;
^
Main.java:127: error: bad operand types for binary operator '=='
if(mag == null){
^
first type: int
second type: <null>
2 errors
|
||
| #8 |
Error de compilación
Main.java:116: error: incompatible types: <null> cannot be converted to int
int mag = null;
^
Main.java:127: error: bad operand types for binary operator '=='
if(mag == null){
^
first type: int
second type: <null>
2 errors
|
||
| #9 |
Error de compilación
Main.java:116: error: incompatible types: <null> cannot be converted to int
int mag = null;
^
Main.java:127: error: bad operand types for binary operator '=='
if(mag == null){
^
first type: int
second type: <null>
2 errors
|
||
| #10 |
Error de compilación
Main.java:116: error: incompatible types: <null> cannot be converted to int
int mag = null;
^
Main.java:127: error: bad operand types for binary operator '=='
if(mag == null){
^
first type: int
second type: <null>
2 errors
|
||
| #11 |
Error de compilación
Main.java:116: error: incompatible types: <null> cannot be converted to int
int mag = null;
^
Main.java:127: error: bad operand types for binary operator '=='
if(mag == null){
^
first type: int
second type: <null>
2 errors
|
||
| #12 |
Error de compilación
Main.java:116: error: incompatible types: <null> cannot be converted to int
int mag = null;
^
Main.java:127: error: bad operand types for binary operator '=='
if(mag == null){
^
first type: int
second type: <null>
2 errors
|
||
| #13 |
Error de compilación
Main.java:116: error: incompatible types: <null> cannot be converted to int
int mag = null;
^
Main.java:127: error: bad operand types for binary operator '=='
if(mag == null){
^
first type: int
second type: <null>
2 errors
|
||
| #14 |
Error de compilación
Main.java:116: error: incompatible types: <null> cannot be converted to int
int mag = null;
^
Main.java:127: error: bad operand types for binary operator '=='
if(mag == null){
^
first type: int
second type: <null>
2 errors
|
||
| #15 |
Error de compilación
Main.java:116: error: incompatible types: <null> cannot be converted to int
int mag = null;
^
Main.java:127: error: bad operand types for binary operator '=='
if(mag == null){
^
first type: int
second type: <null>
2 errors
|
||
| #16 |
Error de compilación
Main.java:116: error: incompatible types: <null> cannot be converted to int
int mag = null;
^
Main.java:127: error: bad operand types for binary operator '=='
if(mag == null){
^
first type: int
second type: <null>
2 errors
|
||
| #17 |
Error de compilación
Main.java:116: error: incompatible types: <null> cannot be converted to int
int mag = null;
^
Main.java:127: error: bad operand types for binary operator '=='
if(mag == null){
^
first type: int
second type: <null>
2 errors
|
||
| #18 |
Error de compilación
Main.java:116: error: incompatible types: <null> cannot be converted to int
int mag = null;
^
Main.java:127: error: bad operand types for binary operator '=='
if(mag == null){
^
first type: int
second type: <null>
2 errors
|
||
| #19 |
Error de compilación
Main.java:116: error: incompatible types: <null> cannot be converted to int
int mag = null;
^
Main.java:127: error: bad operand types for binary operator '=='
if(mag == null){
^
first type: int
second type: <null>
2 errors
|
||
| #20 |
Error de compilación
Main.java:116: error: incompatible types: <null> cannot be converted to int
int mag = null;
^
Main.java:127: error: bad operand types for binary operator '=='
if(mag == null){
^
first type: int
second type: <null>
2 errors
|
import java.io.DataInputStream;
import java.io.FileInputStream;
import java.io.IOException;
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')
break;
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 Exception {
Reader s = new Reader();
int size = s.nextInt();
int[][] arr = new int[size][size];
int sum = 0;
int mag = null;
int diag1 = 0;
int diag2 = 0;
for (int i = 0; i < size; i++) {
sum = 0;
for (int j = 0; j < size; j++) {
arr[i][j] =s.nextInt();
sum += arr[i][j];
if(i == j){diag1 += arr[i][j];}
if(i+j+1 == size){diag2 += arr[i][j];}
if(j+1 == size){
if(mag == null){
mag = sum;
}
if(mag != sum){
System.out.println("No");return;
}
}
}
}
if(diag1 != mag || diag2 != mag){
System.out.println("No");return;
}
for (int j = 0; j < size; j++) {
sum = 0;
for (int i = 0; i < size; i++) {
sum += arr[i][j];
if(j+1 == size && mag != sum){
System.out.println("No");return; }
}
}
System.out.println("Yes");
}
}