Submission #426378

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
426378	2021-06-13 21:31:46	duality	From Hacks to Snitches (BOI21_watchmen)	C++11	25 / 100	6039 ms	136300 KiB

watchmen

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#include <bits/stdc++.h>
using namespace std;
#define mp make_pair
#define pb push_back
typedef long long int LLI;
typedef vector<int> vi;
typedef pair<int,int> pii;
typedef vector<pii> vpii;
int readInt() {
    char c;
    int n = 0;
    while ((c=getchar()) < '0');
    n = c-'0';
    while ((c=getchar()) >= '0') n = n*10+c-'0';
    return n;
}
vi adjList[250000];
int pos[250000];
pair<int,pii> p[250000];
bool comp(int a,int b) {
    return p[a] < p[b];
}
vi dist[250000];
int done[250000],done2[250000];
vi Q[1000000];
int main() {
    int i,j;
    int N,M,K;
    int u,v,l;
 
 
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Compilation message (stderr)

watchmen.cpp: In function 'int main()':
watchmen.cpp:50:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   50 |         while ((pos[i] < adjList[i].size()) && (p[adjList[i][pos[i]]].first <= 1)) pos[i]++;
      |                 ~~~~~~~^~~~~~~~~~~~~~~~~~~
watchmen.cpp:68:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   68 |         for (; i < adjList[u].size(); i++) {
      |                ~~^~~~~~~~~~~~~~~~~~~
watchmen.cpp:31:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   31 |     scanf("%d %d",&N,&M);
      |     ~~~~~^~~~~~~~~~~~~~~
watchmen.cpp:39:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   39 |     scanf("%d",&K);
      |     ~~~~~^~~~~~~~~
watchmen.cpp:41:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   41 |         scanf("%d",&l);
      |         ~~~~~^~~~~~~~~
watchmen.cpp:42:38: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   42 |         for (j = 0; j < l; j++) scanf("%d",&v),p[v-1] = mp(l,mp(j,i));
      |                                 ~~~~~^~~~~~~~~

• Subtask 1: 5 / 5
• Subtask 2: 10 / 10
• Subtask 3: 10 / 10
• Subtask 4: 0 / 10
• Subtask 5: 0 / 25
• Subtask 6: 0 / 20
• Subtask 7: 0 / 20