Submission #482466

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
482466	2021-10-24 15:50:45	SamAnd	Martian DNA (BOI18_dna)	C++17	100 / 100	116 ms	19524 KiB

dna

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#include <bits/stdc++.h>
using namespace std;
const int N = 200005;
 
int n, k, r;
int a[N];
int b[N];
vector<int> v[N];
int j[N];
 
int main()
{
    scanf("%d%d%d", &n, &k, &r);
    for (int i = 1; i <= n; ++i)
        scanf("%d", &a[i]);
    while (r--)
    {
        int x, y;
        scanf("%d%d", &x, &y);
        b[x] = y;
    }
    for (int i = 1; i <= n; ++i)
        v[a[i]].push_back(i);
    set<int> s;
    for (int i = 0; i < k; ++i)
    {
        if (!b[i])
            continue;
        if (v[i].size() < b[i])
        {
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

dna.cpp: In function 'int main()':
dna.cpp:29:25: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   29 |         if (v[i].size() < b[i])
      |             ~~~~~~~~~~~~^~~~~~
dna.cpp:44:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   44 |             if (!(j[a[i - 1]] < v[a[i - 1]].size()))
      |                   ~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~
dna.cpp:13:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   13 |     scanf("%d%d%d", &n, &k, &r);
      |     ~~~~~^~~~~~~~~~~~~~~~~~~~~~
dna.cpp:15:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   15 |         scanf("%d", &a[i]);
      |         ~~~~~^~~~~~~~~~~~~
dna.cpp:19:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   19 |         scanf("%d%d", &x, &y);
      |         ~~~~~^~~~~~~~~~~~~~~~

• Subtask 1: 16 / 16
• Subtask 2: 24 / 24
• Subtask 3: 28 / 28
• Subtask 4: 32 / 32