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Envío 2842

Problema 0xf2 - Partir un arreglo grande en 2

  • Autor: sancanella
  • Fecha: 2021-02-07 03:30:19 UTC (Hace alrededor de 3 años)
Caso # Resultado Tiempo Memoria
#1
Correcto
0.071 s 13 KBi
#2
Correcto
0.082 s 10 KBi
#3
Correcto
0.077 s 13 KBi
#4
Correcto
0.078 s 13 KBi
#5
Correcto
0.09 s 10 KBi
#6
Correcto
0.077 s 14 KBi
#7
Correcto
0.088 s 10 KBi
#8
Correcto
0.089 s 10 KBi
#9
Correcto
0.082 s 13 KBi
#10
Correcto
0.071 s 13 KBi
#11
Correcto
0.073 s 13 KBi
#12
Correcto
0.078 s 13 KBi
#13
Correcto
0.069 s 13 KBi
#14
Correcto
0.13 s 16 KBi
#15
Correcto
0.114 s 15 KBi
#16
Correcto
0.127 s 16 KBi
#17
Correcto
0.114 s 15 KBi
#18
Correcto
0.118 s 16 KBi
#19
Correcto
0.134 s 16 KBi
#20
Correcto
0.153 s 16 KBi
Puntos totales: 100 / 100

Código

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];
        int sum = 0;
        for (int i = 0; i < size; i++) {
            arr[i] =s.nextInt(); 
            sum += arr[i];
        }
        int acc = 0;
        for (int i = 0; i < size; i++) {
            acc+= arr[i];
           if(acc > 0 && sum - acc < 0){
               System.out.println(i+1);
               return;
           }
        }
         System.out.println("Impossible");
      
    }
}