Submission #607396

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
607396	2022-07-26 16:22:30	kawaii	Martian DNA (BOI18_dna)	C++14	100 / 100	115 ms	12096 KiB

dna

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#include <bits/stdc++.h>
using namespace std;
#define int long long
#define fi first
#define se second
 
int t, n, m, k, b, q, r, a[1000005], num[1000005], dem[1000005], mod = 1e9 + 7;
string s;
mt19937_64 rng;
bool flag[1000005];
int mul(int x, int y){
    if(y == 0) return 1;
    int ans = mul(x, y / 2);
    if(y % 2 == 0) return (ans * ans) % mod;
    else return (((ans * ans) % mod) * x) % mod;
}
 
void solve(){
    while(r--){
        cin >> b >> q;
        num[b] = q;
    }
    int l = 0; r = n + 1;
    while(r - l > 0){
        int mid = l + r >> 1, ans = 0, answer = 0; 
        memset(dem, 0, sizeof(dem));
        memset(flag, 0, sizeof(flag));
        for(int i = 0; i < k; i++){
            if(!num[i]){
                ans++; flag[i] = 1;
 
 
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Compilation message (stderr)

dna.cpp: In function 'void solve()':
dna.cpp:25:21: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   25 |         int mid = l + r >> 1, ans = 0, answer = 0;
      |                   ~~^~~
dna.cpp:33:13: warning: unused variable 'cnt' [-Wunused-variable]
   33 |         int cnt = 0;
      |             ^~~

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