oj.uz

Submission #46355

# Submission time Handle Problem Language Result Execution time Memory
46355 2018-04-19T17:42:00 Z evpipis Sirni (COCI17_sirni) C++11
84 / 140
 5000 ms 786436 KB 
#include <bits/stdc++.h>
using namespace std;

#define pb push_back
#define fi first
#define se second
#define mp make_pair
typedef pair<int, int> ii;
typedef long long ll;

const int len = 1e5+2;
int cnt[100*len], nex[2][100*len], p[len], r[len];
list<ii> vec[100*len];

int fin(int i){
    if (p[i] == i) return i;
    return p[i] = fin(p[i]);
}

void join(int i, int j){
    if (r[i] > r[j])
        p[j] = i;
    else{
        p[i] = j;
        if (r[i] == r[j]) r[j]++;
    }
}

void read(int &res){
    char c;
    while (c = getchar(), c < '0' || c > '9'){}
    res = c-'0';
    while (c = getchar(), c >= '0' && c <= '9')
        res = 10*res+c-'0';
}

int main(){
    int n, m = 0, k = 0;
    read(n);
    for (int i = 0; i < n; i++){
        int temp;
        read(temp);

        m = max(m, temp);
        if (!cnt[temp]) cnt[temp] = ++k;
    }

    for (int i = m; i >= 1; i--){
        nex[0][i] = nex[0][i+1];
        if (cnt[i]) nex[0][i] = i;

        nex[1][i] = nex[1][i+1];
        if (cnt[i+1]) nex[1][i] = i+1;
    }

    for (int i = 1; i <= k; i++){
        r[i] = 0;
        p[i] = i;
    }

    for (int i = 1; i <= m; i++)
        if (cnt[i])
            for (int j = i; j <= m; j+=i){
                if (j == i && nex[1][j] && nex[1][j] < j+i)
                    vec[nex[1][j]-j].pb(mp(cnt[i], cnt[nex[1][j]]));
                else if (j != i && nex[0][j] && nex[0][j] < j+i);
                    vec[nex[0][j]-j].pb(mp(cnt[i], cnt[nex[0][j]]));
            }

    ll ans = 0;
    for (int i = 0; i <= m; i++){
        if (k == 1) break;
        for (auto it : vec[i]){
            if (k == 1) break;
            int x = fin(it.fi), y = fin(it.se);
            if (x != y)
                join(x, y), ans += i, k--;
        }
    }

    printf("%lld\n", ans);
    return 0;
}

Compilation message

sirni.cpp: In function 'int main()':
sirni.cpp:66:22: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
                 else if (j != i && nex[0][j] && nex[0][j] < j+i);
                      ^~
sirni.cpp:67:21: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'if'
                     vec[nex[0][j]-j].pb(mp(cnt[i], cnt[nex[0][j]]));
                     ^~~

Subtask #1
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 277 ms 317272 KB Output is correct
2 Correct 1369 ms 401964 KB Output is correct
3 Correct 286 ms 401964 KB Output is correct

Subtask #2
0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 192 ms 401964 KB Output is correct
2 Runtime error 3439 ms 786432 KB Execution killed with signal 11 (could be triggered by violating memory limits)
3 Halted 0 ms 0 KB -

Subtask #3
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 279 ms 786432 KB Output is correct
2 Correct 280 ms 786432 KB Output is correct
3 Correct 279 ms 786432 KB Output is correct

Subtask #4
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 500 ms 786432 KB Output is correct
2 Correct 1333 ms 786432 KB Output is correct
3 Correct 683 ms 786432 KB Output is correct

Subtask #5
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 241 ms 786432 KB Output is correct
2 Correct 904 ms 786432 KB Output is correct
3 Correct 462 ms 786432 KB Output is correct

Subtask #6
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 924 ms 786432 KB Output is correct
2 Correct 1634 ms 786432 KB Output is correct
3 Correct 620 ms 786432 KB Output is correct

Subtask #7
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 266 ms 786432 KB Output is correct
2 Correct 1758 ms 786432 KB Output is correct
3 Correct 734 ms 786432 KB Output is correct

Subtask #8
0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 939 ms 786432 KB Output is correct
2 Execution timed out 5119 ms 786436 KB Time limit exceeded
3 Halted 0 ms 0 KB -

Subtask #9
0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 1093 ms 786436 KB Output is correct
2 Runtime error 4240 ms 786436 KB Execution killed with signal 11 (could be triggered by violating memory limits)
3 Halted 0 ms 0 KB -

Subtask #10
0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 415 ms 786436 KB Output is correct
2 Execution timed out 5083 ms 786436 KB Time limit exceeded
3 Halted 0 ms 0 KB -