Submission #212276

#	Time	Username	Problem	Language	Result	Execution time	Memory
212276		jk89	Garage (IOI09_garage)	C++14	100 / 100	7 ms	512 KiB

garage

#include <cstdio>
#include <vector>
#include <algorithm>
#include <set>
#include <queue>

using namespace std;

#define f first
#define s second

const int MAXN = 1e2 + 3;
const int MAXM = 2e3 + 3;

int c[MAXN];
int w[MAXM];
int msc[MAXM];
set<int> q;
queue<int> kol;

int main() {
    int n, m, x;
    int wyn = 0;
    scanf("%d %d", &n, &m);
    for (int i = 1; i <= n; i++) {
        scanf("%d", &c[i]);
        q.insert(i);
    }
    for (int i = 1; i <= m; i++)
        scanf("%d", &w[i]);
    for (int i = 1; i <= 2 * m; i++) {
        scanf("%d", &x);
        if (x > 0) {
            if (q.empty())
                kol.push(x);
            else {
                wyn += w[x] * c[*q.begin()];
                msc[x] = *q.begin();
                q.erase(q.begin());
            }
        }
        else {
            x = -x;
            q.insert(msc[x]);
            if (!kol.empty()) {
                q.erase(q.begin());
                wyn += w[kol.front()] * c[msc[x]];
                msc[kol.front()] = msc[x];
                kol.pop();
            }
        }
    }
    printf("%d", wyn);
    return 0;
}

Compilation message (stderr)

garage.cpp: In function 'int main()':
garage.cpp:24:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d %d", &n, &m);
     ~~~~~^~~~~~~~~~~~~~~~~
garage.cpp:26:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d", &c[i]);
         ~~~~~^~~~~~~~~~~~~
garage.cpp:30:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d", &w[i]);
         ~~~~~^~~~~~~~~~~~~
garage.cpp:32:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d", &x);
         ~~~~~^~~~~~~~~~

• Subtask 1: 100 / 100