Submission #57889

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
57889	2018-07-16 13:31:54	gabrielsimoes	Chase (CEOI17_chase)	C++17	30 / 100	2101 ms	256924 KiB

chase

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#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
const int MAXN = 1e5+10, MAXV = 101;
int n, vMax;
ll p[MAXN];
vector<int> g[MAXN];
int a[MAXN], b[MAXN];
ll dp[MAXN][MAXV][3];
ll f(int curEdge, int v, int dir) {
    if (v == 0) return 0;
    ll &ret = dp[curEdge][v][dir];
    if (ret != -1) return ret;
    ret = 0;
    int cur, prev;
    if (dir == 0) cur = curEdge, prev = -1;
    else if (dir == 1) prev = a[curEdge], cur = b[curEdge];
    else cur = a[curEdge], prev = b[curEdge];
    ll sumAll = 0;
    for (int edge : g[cur]) {
        int nx = a[edge] == cur ? b[edge] : a[edge];
        if (nx != prev) {
            sumAll += p[nx];
        }
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

chase.cpp: In function 'int main()':
chase.cpp:50:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d%d", &n, &vMax);
     ~~~~~^~~~~~~~~~~~~~~~~~~
chase.cpp:51:39: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     for (int i = 1; i <= n; i++) scanf("%lld", &p[i]);
                                  ~~~~~^~~~~~~~~~~~~~~
chase.cpp:53:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d%d", &a[i], &b[i]);
         ~~~~~^~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 0 / 20
• Subtask 2: 0 / 20
• Subtask 3: 30 / 30
• Subtask 4: 0 / 30