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Submission #275775

# Submission time Handle Problem Language Result Execution time Memory
275775 2020-08-20T07:43:32 Z 반딧불(#5115) Radio (Balkan15_RADIO) C++17
0 / 100
 71 ms 512 KB 
#include <bits/stdc++.h>

using namespace std;

typedef long long ll;

int n, k;
ll x[100002], p[100002], s[100002];
ll ans = LLONG_MAX, loc, tmpAns;
vector<ll> v;

int main(){
    scanf("%d %d", &n, &k);
    for(int i=0; i<n; i++){
        scanf("%lld %lld %lld", &x[i], &p[i], &s[i]);
    }

    for(int i=0; i<(1<<n); i++){
        int cnt=0;
        tmpAns = 0;
        v.clear();
        for(int j=0; j<n; j++){
            if(i&(1<<j))
                v.push_back(x[j]-p[j]), v.push_back(x[j]+p[j]), cnt++;
            else tmpAns -= s[j];
        }
        if(cnt != k) continue;
        sort(v.begin(), v.end());

        loc = v[(int)v.size()/2];
        for(int j=0; j<n; j++){
            if(i&(1<<j))
                tmpAns += max(0LL, abs(loc - x[j]) - p[j]);
        }
        ans = min(ans, tmpAns);
    }
    printf("%lld", ans);
}

Compilation message

radio.cpp: In function 'int main()':
radio.cpp:13:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   13 |     scanf("%d %d", &n, &k);
      |     ~~~~~^~~~~~~~~~~~~~~~~
radio.cpp:15:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   15 |         scanf("%lld %lld %lld", &x[i], &p[i], &s[i]);
      |         ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 4 ms 384 KB Output is correct
5 Correct 4 ms 512 KB Output is correct
6 Correct 4 ms 384 KB Output is correct
7 Incorrect 71 ms 388 KB Output isn't correct

Subtask #2
0 / 15.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 384 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #3
0 / 15.0

# Verdict Execution time Memory Grader output
1 Incorrect 69 ms 380 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 15.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 384 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 15.0

# Verdict Execution time Memory Grader output
1 Incorrect 69 ms 380 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #6
0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 4 ms 384 KB Output is correct
5 Correct 4 ms 512 KB Output is correct
6 Correct 4 ms 384 KB Output is correct
7 Incorrect 71 ms 388 KB Output isn't correct