Submission #394720

#TimeUsernameProblemLanguageResultExecution timeMemory
394720surenSwapping Cities (APIO20_swap)C++14
Compilation error
0 ms0 KiB
#include<bits/stdc++.h> using namespace std; #define ll long long #define pb push_back #define mk make_pair int n, m; vector < int > u, v, w; vector < int > vc[10045]; void init(int N, int M, std::vector<int> U, std::vector<int> V, std::vector<int> W) { u = U; v = V; w = W; } bool vis[10045]; int getMinimumFuelCapacity(int X, int Y) { int flag = true, i; map < pair < int , int >, int > mp; for( i = 0; i < m; i ++ ){ vc[ u[i] ].pb( v[i] ); vc[ v[i] ].pb( u[i] ); mp[ mk( u[i], v[i] ) ] = w[i]; mp[ mk( v[i], u[i] ) ] = w[i]; } for(;;); for( i = 0; i < n; i ++ ){ if( vc[i].size() != 2 ){ flag = false; break; } } if( flag == true ){ vis[X] = 1; int p = vc[X][0]; int ans = mp[ mk(X,p) ]; while( p != Y ){ vis[ p ] = 1; if( vc[p][0] == 0 ){ ans = max( ans, mp[ mk( p, vc[p][0] ) ] ); p = vc[p][0]; } else{ ans = max( ans, mp[ mk( p, vc[p][1] ) ] ); p = vc[p][1]; } } p = vc[X][1]; int ans1 = mp[ mk(X,p) ]; while( p != Y ){ vis[ p ] = 1; if( vc[p][0] == 0 ){ ans1 = max( ans, mp[ mk( p, vc[p][0] ) ] ); p = vc[p][0]; } else{ ans1 = max( ans, mp[ mk( p, vc[p][1] ) ] ); p = vc[p][1]; } } return min( ans, ans1 ); } flag = true; int ans = 0; for( i = 0; i < n; i ++ ){ if( vc[i].size() >= 3 ){ flag = false; break; } } if( flag == true ){ for( i = 0; i < m; i ++ ) ans = max( ans, w[i] ); return ans; } return 0; } int main() { int N, M; assert(2 == scanf("%d %d", &N, &M)); std::vector<int> U(M), V(M), W(M); for (int i = 0; i < M; ++i) { assert(3 == scanf("%d %d %d", &U[i], &V[i], &W[i])); } int Q; assert(1 == scanf("%d", &Q)); std::vector<int> X(Q), Y(Q); for (int i = 0; i < Q; ++i) { assert(2 == scanf("%d %d", &X[i], &Y[i])); } init(N, M, U, V, W); std::vector<int> minimum_fuel_capacities(Q); for (int i = 0; i < Q; ++i) { minimum_fuel_capacities[i] = getMinimumFuelCapacity(X[i], Y[i]); } for (int i = 0; i < Q; ++i) { printf("%d\n", minimum_fuel_capacities[i]); } return 0; }

Compilation message (stderr)

/tmp/ccNpCFUo.o: In function `main':
grader.cpp:(.text.startup+0x0): multiple definition of `main'
/tmp/ccArhbRN.o:swap.cpp:(.text.startup+0x0): first defined here
collect2: error: ld returned 1 exit status