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Submission #601467

# Submission time Handle Problem Language Result Execution time Memory
601467 2022-07-22T04:51:40 Z 반딧불(#8472) Stranded Far From Home (BOI22_island) C++17
10 / 100
 1000 ms 16036 KB 
#include <bits/stdc++.h>

using namespace std;

typedef long long ll;

int n, m;
int arr[200002];
bool ans[200002];
bool chk[200002];
vector<int> link[200002];

bool dfs(int st){
    priority_queue<pair<int, int>, vector<pair<int, int> >, greater<pair<int, int> > > pq;
    for(int i=1; i<=n; i++) chk[i] = 0;
    chk[st] = 1;
    int sum = arr[st];

    for(auto y: link[st]) pq.push(make_pair(arr[y], y)), chk[y] = 1;
    while(!pq.empty()){
        pair<int, int> tmp = pq.top(); pq.pop();
        int x = tmp.second;
        if(sum < tmp.first) return false;
        sum += tmp.first;
        if(sum >= 1e9) return true;
        for(auto y: link[x]){
            if(chk[y]) continue;
            pq.push(make_pair(arr[y], y));
            chk[y] = 1;
        }
    }
    return true;
}

int main(){
    scanf("%d %d", &n, &m);
    for(int i=1; i<=n; i++) scanf("%d", &arr[i]);
    for(int i=1; i<=m; i++){
        int x, y;
        scanf("%d %d", &x, &y);
        link[x].push_back(y);
        link[y].push_back(x);
    }

    for(int i=1; i<=n; i++) ans[i] = dfs(i);
    for(int i=1; i<=n; i++) printf("%d", ans[i]);
}

Compilation message

island.cpp: In function 'int main()':
island.cpp:36:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   36 |     scanf("%d %d", &n, &m);
      |     ~~~~~^~~~~~~~~~~~~~~~~
island.cpp:37:34: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   37 |     for(int i=1; i<=n; i++) scanf("%d", &arr[i]);
      |                             ~~~~~^~~~~~~~~~~~~~~
island.cpp:40:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   40 |         scanf("%d %d", &x, &y);
      |         ~~~~~^~~~~~~~~~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4948 KB Output is correct
2 Correct 3 ms 4996 KB Output is correct
3 Correct 3 ms 4948 KB Output is correct
4 Correct 5 ms 5204 KB Output is correct
5 Correct 4 ms 5076 KB Output is correct
6 Correct 4 ms 5076 KB Output is correct
7 Correct 4 ms 5076 KB Output is correct
8 Correct 4 ms 5016 KB Output is correct
9 Correct 203 ms 5100 KB Output is correct
10 Correct 5 ms 5016 KB Output is correct
11 Correct 5 ms 5048 KB Output is correct
12 Correct 4 ms 5076 KB Output is correct
13 Correct 105 ms 5076 KB Output is correct
14 Correct 79 ms 5076 KB Output is correct

Subtask #2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4948 KB Output is correct
2 Correct 2 ms 4948 KB Output is correct
3 Execution timed out 1027 ms 14696 KB Time limit exceeded
4 Halted 0 ms 0 KB -

Subtask #3
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4948 KB Output is correct
2 Execution timed out 1049 ms 16036 KB Time limit exceeded
3 Halted 0 ms 0 KB -

Subtask #4
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4948 KB Output is correct
2 Execution timed out 1042 ms 15716 KB Time limit exceeded
3 Halted 0 ms 0 KB -

Subtask #5
0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4948 KB Output is correct
2 Correct 3 ms 4996 KB Output is correct
3 Correct 3 ms 4948 KB Output is correct
4 Correct 5 ms 5204 KB Output is correct
5 Correct 4 ms 5076 KB Output is correct
6 Correct 4 ms 5076 KB Output is correct
7 Correct 4 ms 5076 KB Output is correct
8 Correct 4 ms 5016 KB Output is correct
9 Correct 203 ms 5100 KB Output is correct
10 Correct 5 ms 5016 KB Output is correct
11 Correct 5 ms 5048 KB Output is correct
12 Correct 4 ms 5076 KB Output is correct
13 Correct 105 ms 5076 KB Output is correct
14 Correct 79 ms 5076 KB Output is correct
15 Correct 3 ms 4948 KB Output is correct
16 Correct 2 ms 4948 KB Output is correct
17 Execution timed out 1027 ms 14696 KB Time limit exceeded
18 Halted 0 ms 0 KB -