Submission #719548

#TimeUsernameProblemLanguageResultExecution timeMemory
719548vinnipuh01Stranded Far From Home (BOI22_island)C++17
10 / 100
1091 ms37296 KiB
#include <iostream> #include <bits/stdc++.h> #include <cmath> #include <algorithm> #include <vector> #include <deque> #include <set> #include <stack> #include <string> #include <map> #include <queue> #define int long long #define sqrt sqrtl using namespace std; const long long oo = 1000000000000000000; long long sum, ans = 0, mx = 0, mn = 1000000000, num, pos; /* ViHHiPuh (( `'-""``""-'` )) )-__-_.._-__-( / --- (o _ o) --- \ \ .-* ( .0. ) *-. / _'-. ,_ '=' _, .-'_ / `;#'#'# - #'#'#;` \ \_)) -----'#'----- ((_/ # --------- # '# ------- ------ #' /..-'# ------- #'-.\ _\...-\'# -- #'/-.../_ ((____)- '#' -(____)) cout << fixed << setprecision(6) << x; freopen ( "sum.in", "r", stdin ) */ int n, m, a[ 400001 ], x, y; int an[ 200001 ]; int p[ 400001 ], r[ 400001 ], c[ 400001 ]; vector <int> v[ 400001 ]; set <pair<int, int> > st; int used[ 400001 ]; bool bfs( int u ) { st.clear(); st.insert( { 0, u } ); used[ u ] = 1; sum = a[ u ]; while ( st.size() ) { u = st.begin()->second; used[ u ] = 1; int cost = st.begin()->first; st.erase( st.begin() ); if ( sum < cost ) return false; sum += cost; for ( auto to : v[ u ] ) { if ( !used[ to ] ) st.insert( { a[ to ], to } ); } } return true; } main () { ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0); cin >> n >> m; for ( int i = 1; i <= n; i ++ ) { cin >> a[ i ]; p[ i ] = i; r[ i ] = 1; c[ i ] = a[ i ]; st.insert( { a[ i ], i } ); } for ( int i = 1; i <= m; i ++ ) { cin >> x >> y; v[ x ].push_back( y ); v[ y ].push_back( x ); } for ( int i = 1; i <= n; i ++ ) { cout << bfs( i ); for ( int j = 1; j <= n; j ++ ) used[ j ] = 0; } }

Compilation message (stderr)

island.cpp:74:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   74 | main () {
      | ^~~~
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