oj.uz

Submission #58628

# Submission time Handle Problem Language Result Execution time Memory
58628 2018-07-18T14:02:42 Z patrikpavic2 Ili (COI17_ili) C++17
49 / 100
 632 ms 996 KB 
#include <algorithm>
#include <cstdio>
#include <cstring>

using namespace std;

const int N = 1e4 + 500;

int n, m;
int zn[N], op1[N],op2[N], skup[N], pod[N], perm[N], cnt[N];
char c;

void dfs(int x){
    if(skup[x]) return;
    skup[x] = 1;
    if(x < n) {
        return;
    }
    dfs(op1[x]);
    dfs(op2[x]);
}

bool cmp(const int &A, const int &B){
    return cnt[A] < cnt[B];
}

int main(){
    scanf("%d%d", &n, &m);
    for(int i = 0;i<n;i++) zn[i] = 2;
    for(int i = n;i<n + m;i++){
        scanf(" %c", &c);
        if(c == '?') zn[i] = 2;
        else zn[i] = c - '0';
    }
    for(int i = n;i<n + m;i++){
        char c1, c2;
        scanf(" %c%d %c%d", &c1, &op1[i], &c2, &op2[i]);
        op1[i]--,op2[i]--;
        if(c1 == 'c') op1[i] += n;
        if(c2 == 'c') op2[i] += n;
        if(zn[i] != 0) continue;
        memset(skup, 0 ,sizeof(skup));
        dfs(i);
        for(int j = 0;j<n;j++)
            if(skup[j])
                zn[j] = 0;

    }
    for(int i = n;i<n + m;i++){
        memset(skup, 0 ,sizeof(skup));
        dfs(i);
        for(int j = 0;j<n;j++) if(skup[j] && zn[j]) cnt[i]++;
        if(zn[i] != 2) continue;
        zn[i] = 0;
        for(int j = 0;j<n;j++){
            if(skup[j] && zn[j] != 0)
                zn[i] = 2;
        }
    }
    for(int i = 0;i<m;i++) perm[i] = n + i;
    sort(perm, perm + m, cmp);
    for(int l = 0;l<m;l++){
        int i = perm[l];
        if(zn[i] != 2) continue;
        memset(skup, 0, sizeof(skup));
        memset(pod, 0, sizeof(pod));
        dfs(i);
        for(int i = 0;i<n;i++)
            if(skup[i] || !zn[i]) pod[i] = 1;
        for(int j = n;j<n + m;j++){
            if(pod[op1[j]] && pod[op2[j]])
                pod[j] = 1;
        }
        for(int j = n;j<n + m;j++){
            if(pod[j] && zn[j] == 1) zn[i] = 1;
        }
    }
    for(int i = n;i<n + m;i++){
        if(zn[i] == 2)printf("?");
        else printf("%c", '0' + zn[i]);
    }
}

Compilation message

ili.cpp: In function 'int main()':
ili.cpp:28:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d%d", &n, &m);
     ~~~~~^~~~~~~~~~~~~~~~
ili.cpp:31:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf(" %c", &c);
         ~~~~~^~~~~~~~~~~
ili.cpp:37:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf(" %c%d %c%d", &c1, &op1[i], &c2, &op2[i]);
         ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 4 ms 520 KB Output is correct
4 Correct 2 ms 520 KB Output is correct
5 Correct 2 ms 596 KB Output is correct
6 Correct 2 ms 596 KB Output is correct
7 Correct 2 ms 596 KB Output is correct

Subtask #2
42.0 / 42.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 4 ms 520 KB Output is correct
4 Correct 2 ms 520 KB Output is correct
5 Correct 2 ms 596 KB Output is correct
6 Correct 2 ms 596 KB Output is correct
7 Correct 2 ms 596 KB Output is correct
8 Correct 7 ms 596 KB Output is correct
9 Correct 6 ms 684 KB Output is correct
10 Correct 6 ms 684 KB Output is correct
11 Correct 6 ms 684 KB Output is correct
12 Correct 5 ms 684 KB Output is correct
13 Correct 6 ms 684 KB Output is correct
14 Correct 8 ms 740 KB Output is correct

Subtask #3
0 / 51.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 4 ms 520 KB Output is correct
4 Correct 2 ms 520 KB Output is correct
5 Correct 2 ms 596 KB Output is correct
6 Correct 2 ms 596 KB Output is correct
7 Correct 2 ms 596 KB Output is correct
8 Correct 7 ms 596 KB Output is correct
9 Correct 6 ms 684 KB Output is correct
10 Correct 6 ms 684 KB Output is correct
11 Correct 6 ms 684 KB Output is correct
12 Correct 5 ms 684 KB Output is correct
13 Correct 6 ms 684 KB Output is correct
14 Correct 8 ms 740 KB Output is correct
15 Correct 281 ms 796 KB Output is correct
16 Correct 549 ms 996 KB Output is correct
17 Correct 632 ms 996 KB Output is correct
18 Incorrect 3 ms 996 KB Output isn't correct
19 Halted 0 ms 0 KB -