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Submission #8092

# Submission time Handle Problem Language Result Execution time Memory
8092 2014-08-29T16:30:25 Z gs14004 전봇대 (KOI13_pole) C++
0 / 100
 0 ms 1088 KB 
#include <cstdio>
#include <algorithm>
using namespace std;
typedef long long lint;

struct pole{lint a,i;}d[105];
int cmp(pole a, pole b){return a.a * b.i < b.a * a.i;}

lint n;
lint trial(lint piv){
    lint res = 0;
    for (int i=0; i<n; i++) {
        res += max(d[i].a - piv * d[i].i, piv * d[i].i - d[i].a);
    }
    return res;
}

int main(){
    scanf("%lld",&n);
    for (int i=0; i<n; i++) {
        scanf("%lld",&d[i].a);
        d[i].i = i;
    }
    sort(d,d+n,cmp);
    int piv;
    lint cum = 0;
    for (piv = 0; piv < n; piv++) {
        cum += d[piv].i;
        if(cum >= n * (n-1) / 4) break;
    }
    lint that = d[piv].a / d[piv].i;
    printf("%lld",min(trial(that),trial(that+1)));
}

Subtask #1
0.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 1088 KB Output is correct
2 Correct 0 ms 1088 KB Output is correct
3 Incorrect 0 ms 1088 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #2
0.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 1088 KB Output is correct
2 Correct 0 ms 1088 KB Output is correct
3 Runtime error 0 ms 1088 KB SIGSEGV Segmentation fault
4 Halted 0 ms 0 KB -

Subtask #3
0.0 / 31.0

# Verdict Execution time Memory Grader output
1 Runtime error 0 ms 1084 KB futex (syscall #202) was called by the program (disallowed syscall)
2 Halted 0 ms 0 KB -

Subtask #4
0.0 / 37.0

# Verdict Execution time Memory Grader output
1 Runtime error 0 ms 1084 KB futex (syscall #202) was called by the program (disallowed syscall)
2 Halted 0 ms 0 KB -