UVa - 661 - Blowing Fuses

#include <iostream>
#include <cstdio>
#include <cstring>
#include <vector>
using namespace std;
int main(){
    int n, m, c, m_lines, ans, mx, fuse, cs = 1;
    while(cin >> n >> m >> c){
        if(m == 0 && m == n && m == c)break;
        int n_lines[n+1], toggle[n+1];
        memset(toggle, 0, sizeof(toggle));
        for(int i = 1; i <= n; i++)cin >> n_lines[i];
        ans = 0;int cnt = 0;fuse = 0, mx = 0;
        while(cin >> m_lines){
            cnt++;
            if(toggle[m_lines] == 0)ans += n_lines[m_lines], toggle[m_lines] = 1;
            else ans -= n_lines[m_lines], toggle[m_lines] = 0;

            if(ans <= c){
                if(mx < ans)mx = ans;
            }
            else fuse = 1;

            if(cnt == m)break;
        }
        cout << "Sequence " << cs << endl;
        if(!fuse)cout << "Fuse was not blown." << "\n" << "Maximal power consumption was " << mx << " amperes." << endl;
        else cout << "Fuse was blown." << endl;cs++;
        cout << endl;
    }
    return 0;
}