UVA Problem ID 661 ( Blowing Fuses )

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

public class Main {

    public static void main(String[] args) throws IOException {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        StringBuffer sb = new StringBuffer("");
        int ind=1;
        while (true) {
            String[] str = br.readLine().split(" ");
            int n = Integer.parseInt(str[0]);
            int m = Integer.parseInt(str[1]);
            int c = Integer.parseInt(str[2]);
            if (n == 0 && m == 0 && c == 0) {
                break;
            }
            boolean[] used = new boolean[n];
            int[] cap = new int[n];
            for (int i = 0; i < n; i++) {
                cap[i] = Integer.parseInt(br.readLine());
            }
            int sum = 0, max = -1;
            boolean over = false;
            for (int i = 0; i < m; i++) {
                int index = Integer.parseInt(br.readLine())-1;
                if (!over) {
                    if (!used[index]) {
                        used[index] = true;
                        sum += cap[index];
                        if (sum > max) {
                            max = sum;
                        }
                        if (sum > c) {
                            over = true;
                            continue;
                        }
                    } else {
                        used[index] = false;
                        sum -= cap[index];
                    }
                }
            }
            sb.append("Sequence ").append(ind).append("\n");
            if(over){
               sb.append("Fuse was blown.").append("\n");
            }else{
               sb.append("Fuse was not blown.").append("\n");
               sb.append("Maximal power consumption was ").append(max).append(" amperes.").append("\n");
            }
            sb.append("\n");
            ind++;
        }
        System.out.print(sb);
    }
}