Submission #45326

#	Time	Username	Problem	Language	Result	Execution time	Memory
45326		imaxblue	Tales of seafaring (POI13_mor)	C++17	100 / 100	2645 ms	65536 KiB

mor

#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define mp make_pair
#define pb push_back
#define x first
#define y second
#define pii pair<int, int>
#define p3i pair<pii, int>
#define pll pair<ll, ll>
#define p3l pair<pll, ll>
#define vi vector<int>
#define vpii vector<pii>
#define vp3i vector<p3i>
#define vpll vector<pll>
#define vp3l vector<p3l>
#define lseg L, (L+R)/2, N*2+1
#define rseg (L+R)/2+1, R, N*2+2
#define ub upper_bound
#define lb lower_bound
#define PQ priority_queue
#define MN 1000000007
#define fox(k, x) for (int k=0; k<x; ++k)
#define fox1(k, x) for (int k=1; k<=x; ++k)
#define foxr(k, x) for (int k=x-1; k>=0; --k)
#define fox1r(k, x) for (int k=x; k>0; --k)
#define ms multiset
#define flood(x) memset(x, 0x3f3f3f3f, sizeof x)
#define drain(x) memset(x, 0, sizeof x)
#define rng() ((rand() << 14)+rand())
#define scan(X) do{while((X=getchar())<'0'); for(X-='0'; '0'<=(_=getchar()); X=(X<<3)+(X<<1)+_-'0');}while(0)
char _;
#define pi 3.14159265358979323846

#define top front
int d[2][5005];
int n, m, q, x, y, w, N, D, p;
bool T, ans[1000005];
bitset<5005> u[2];
vector<int> v[5005];
vector<p3i> qn[5005];
queue<pair<int, int> > pq;
void dijk(int S){
    flood(d); drain(u);
    pq.push(mp(0, S));
    while(!pq.empty()){
        D=pq.top().x; T=D%2; N=pq.top().y; pq.pop();
        if (u[T][N]) continue;
        d[T][N]=D; u[T][N]=1;
        fox(l, v[N].size()){
            if (!u[!T][v[N][l]])
                pq.push(mp(D+1, v[N][l]));
        }
    }
    fox(l, qn[S].size()){
        y=qn[S][l].x.x; w=qn[S][l].x.y; p=qn[S][l].y;
        if (u[w%2][y] && v[y].size()==0) continue;
        if (u[w%2][y] && d[w%2][y]<=w){
            ans[p]=1;
        }
    }
}
int32_t main(){
    scanf("%i%i%i", &n, &m, &q);
    fox(l, m){
        scanf("%i%i", &x, &y);
        v[x].pb(y);
        v[y].pb(x);
    }
    fox(l, q){
        scanf("%i%i%i", &x, &y, &w);
        qn[x].pb(mp(mp(y, w), l));
        continue;
    }
    fox1(l, n){
        dijk(l);
    }
    fox(l, q){
        printf((ans[l]?"TAK\n":"NIE\n"));
    }
    return 0;
}

Compilation message (stderr)

mor.cpp: In function 'void dijk(int)':
mor.cpp:23:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
 #define fox(k, x) for (int k=0; k<x; ++k)
mor.cpp:50:13:
         fox(l, v[N].size()){
             ~~~~~~~~~~~~~~        
mor.cpp:50:9: note: in expansion of macro 'fox'
         fox(l, v[N].size()){
         ^~~
mor.cpp:23:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
 #define fox(k, x) for (int k=0; k<x; ++k)
mor.cpp:55:9:
     fox(l, qn[S].size()){
         ~~~~~~~~~~~~~~~           
mor.cpp:55:5: note: in expansion of macro 'fox'
     fox(l, qn[S].size()){
     ^~~
mor.cpp: In function 'int32_t main()':
mor.cpp:64:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%i%i%i", &n, &m, &q);
     ~~~~~^~~~~~~~~~~~~~~~~~~~~~
mor.cpp:66:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%i%i", &x, &y);
         ~~~~~^~~~~~~~~~~~~~~~
mor.cpp:71:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%i%i%i", &x, &y, &w);
         ~~~~~^~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 10 / 10
• Subtask 2: 10 / 10
• Subtask 3: 10 / 10
• Subtask 4: 10 / 10
• Subtask 5: 10 / 10
• Subtask 6: 10 / 10
• Subtask 7: 10 / 10
• Subtask 8: 10 / 10
• Subtask 9: 10 / 10
• Subtask 10: 10 / 10