Submission #155508

#	Time	Username	Problem	Language	Result	Execution time	Memory
155508		karma	Garage (IOI09_garage)	C++14	100 / 100	4 ms	504 KiB

garage

#include<bits/stdc++.h>
#define Task     "test"
#define pb       emplace_back

using namespace std;

const int N = 2002;

int w[N], r[N], n, m, res, id, pos[N];
priority_queue<int, vector<int>, greater<int>> pq;
queue<int> q;

int main() {
    ios_base::sync_with_stdio(0);
    cin.tie(0), cout.tie(0);
    if(fopen(Task".inp", "r")) {
        freopen(Task".inp", "r", stdin);
        freopen(Task".out", "w", stdout);
    }
    cin >> n >> m;
    for(int i = 1; i <= n; ++i) cin >> r[i], pq.push(i);
    for(int i = 1; i <= m; ++i) cin >> w[i];
    for(int i = 1; i <= 2 * m; ++i) {
        cin >> id;
        if(id > 0) q.push(id);
        else pq.push(pos[-id]);
        while(pq.size() && q.size()) {
            id = q.front(); q.pop();
            pos[id] = pq.top(); pq.pop();
            res += w[id] * r[pos[id]];
        }
    }
    cout << res;
}

Compilation message (stderr)

garage.cpp: In function 'int main()':
garage.cpp:17:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
         freopen(Task".inp", "r", stdin);
         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
garage.cpp:18:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
         freopen(Task".out", "w", stdout);
         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 100 / 100