Submission #48294

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
48294	2018-05-11 12:46:13	choikiwon	전압 (JOI14_voltage)	C++17	100 / 100	283 ms	55644 KiB

voltage

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#include<bits/stdc++.h>
using namespace std;
typedef pair<int, int> pii;
const int MN = 100010;
int N, M;
vector<int> adj[MN], U, V;
int tin[MN], tout[MN], col[MN], timer, cnt;
struct Fenwick {
    vector<int> tree;
    void init() {
        tree = vector<int>(N + 1, 0);
    }
    void upd(int idx, int val) {
        for(int i = idx + 1; i <= N; i += (i & -i)) tree[i] += val;
    }
    int quer(int a) {
        int ret = 0;
        for(int i = a + 1; i >= 1; i -= (i & -i)) ret += tree[i];
        return ret;
    }
    int quer(int a, int b) {
        return quer(b) - quer(a - 1);
    }
} bit1, bit2;
priority_queue<pii> pq1, pq2;
int ans;
 
 
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Compilation message (stderr)

voltage.cpp: In function 'void dfs0(int, int)':
voltage.cpp:34:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(int i = 0; i < adj[u].size(); i++) {
                    ~~^~~~~~~~~~~~~~~
voltage.cpp: In function 'void dfs1(int, int)':
voltage.cpp:50:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(int i = 0; i < adj[u].size(); i++) {
                    ~~^~~~~~~~~~~~~~~
voltage.cpp: In function 'int main()':
voltage.cpp:70:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d %d", &N, &M);
     ~~~~~^~~~~~~~~~~~~~~~~
voltage.cpp:74:24: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         int u, v; scanf("%d %d", &u, &v);
                   ~~~~~^~~~~~~~~~~~~~~~~

• Subtask 1: 10 / 10
• Subtask 2: 10 / 10
• Subtask 3: 35 / 35
• Subtask 4: 45 / 45