oj.uz

Submission #201276

# Submission time Handle Problem Language Result Execution time Memory
201276 2020-02-10T05:52:55 Z BThero Naan (JOI19_naan) C++17
24 / 100
 40 ms 63608 KB 
// Why am I so dumb? :c
// chrono::system_clock::now().time_since_epoch().count()
                                                  
#include<bits/stdc++.h>
//#include<ext/pb_ds/assoc_container.hpp>
//#include<ext/pb_ds/tree_policy.hpp>

#define pb push_back
#define mp make_pair

#define all(x) (x).begin(), (x).end()

#define fi first
#define se second

using namespace std;
//using namespace __gnu_pbds;

typedef long long ll;   
typedef pair<int, int> pii;
//template<typename T> using ordered_set = tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;

const int MAXN = (int)2e3 + 5;

struct Ratio {
    ll a, b;

    Ratio() {
        a = 0;
        b = 1;
    }    

    Ratio(ll a, ll b) : a(a), b(b) {}
} limS[MAXN], curS[MAXN], sep[MAXN];

int lcm(int a, int b) {
    return a / __gcd(a, b) * b;
}

bool operator < (Ratio f, Ratio s) {
    return f.a * s.b < f.b * s.a;             
}

bool operator > (Ratio f, Ratio s) {
    return s < f;
}

bool operator == (Ratio f, Ratio s) {
    return !(f < s) && !(s < f);
}

bool operator <= (Ratio f, Ratio s) {
    return f < s || f == s;    
}

bool operator >= (Ratio f, Ratio s) {
    return f > s || f == s;
}

Ratio operator + (Ratio f, Ratio s) {
    int d = lcm(f.b, s.b);
    return Ratio(f.a * d / f.b + s.a * d / s.b, d);           
}

Ratio operator - (Ratio f, Ratio s) {
    s.a *= -1;
    return f + s;
}

Ratio operator * (Ratio f, Ratio s) {
    return Ratio(f.a * s.a, f.b * s.b);
}

Ratio operator / (Ratio f, Ratio s) {
    swap(s.a, s.b);
    return f * s;
}

Ratio arr[MAXN][MAXN];

Ratio coef[MAXN];

int perm[MAXN];

int n, m;

void solve() {
    scanf("%d %d", &n, &m);

    for (int i = 1; i <= n; ++i) {
        for (int j = 1; j <= m; ++j) {
            scanf("%d", &arr[i][j].a);
            arr[i][j].b = 1;
            limS[i] = limS[i] + arr[i][j];
        }

        limS[i].b = n;
    }

    for (int i = 1; i <= n; ++i) {
        perm[i] = i;
    }

    do {        
        int ptr = 1;
        fill(curS + 1, curS + n + 1, Ratio(0, 1));
        bool ok = 1;

        for (int i = 1; i <= m; ++i) {
            coef[i] = Ratio(1, 1);            
        }
                  
        for (int i = 1; i <= n; ++i) {
            int id = perm[i];
            //printf("! %d - %d/%d\n", ptr, coef[ptr].a, coef[ptr].b);

            while (ptr <= m && curS[id] + arr[id][ptr] * coef[ptr] <= limS[id]) {
                curS[id] = curS[id] + arr[id][ptr] * coef[ptr];
                ++ptr;                
            }

            if (ptr > m) {
                if (curS[id] < limS[id]) {
                    ok = 0;
                }
                
                break;
            }            

            sep[i] = (limS[id] - curS[id]) / arr[id][ptr];
            curS[id] = curS[id] + sep[i] * arr[id][ptr];
            Ratio tmp = coef[ptr];
            coef[ptr] = coef[ptr] - sep[i];
            sep[i] = sep[i] + Ratio(ptr, 1) - tmp;           
        }

        for (int i = 1; i <= n; ++i) {
            ok &= (curS[i] >= limS[i]);
        }

        if (ok) {
            for (int i = 1; i < n; ++i) {
                printf("%lld %lld\n", sep[i].a, sep[i].b);
            }

            for (int i = 1; i <= n; ++i) {
                printf("%d%c", perm[i], " \n"[i == n]);
            }

            return;
        }        
    }
    while (next_permutation(perm + 1, perm + n + 1));

    printf("-1\n");
}

int main() {
    int tt = 1;

    while (tt--) {
        solve();
    }

    return 0;
}

Compilation message

naan.cpp: In function 'void solve()':
naan.cpp:92:37: warning: format '%d' expects argument of type 'int*', but argument 2 has type 'll* {aka long long int*}' [-Wformat=]
             scanf("%d", &arr[i][j].a);
                         ~~~~~~~~~~~~^
naan.cpp:88:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d %d", &n, &m);
     ~~~~~^~~~~~~~~~~~~~~~~
naan.cpp:92:18: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
             scanf("%d", &arr[i][j].a);
             ~~~~~^~~~~~~~~~~~~~~~~~~~

Subtask #1
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 33 ms 63352 KB Output is correct
2 Incorrect 34 ms 63352 KB Integer parameter [name=A_i] equals to -1, violates the range [1, 2000000000000]
3 Halted 0 ms 0 KB -

Subtask #2
24.0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 33 ms 63352 KB Output is correct
2 Correct 35 ms 63352 KB Output is correct
3 Correct 40 ms 63368 KB Output is correct
4 Correct 35 ms 63480 KB Output is correct
5 Correct 36 ms 63480 KB Output is correct
6 Correct 35 ms 63352 KB Output is correct
7 Correct 34 ms 63352 KB Output is correct
8 Correct 34 ms 63352 KB Output is correct
9 Correct 39 ms 63444 KB Output is correct
10 Correct 36 ms 63352 KB Output is correct
11 Correct 35 ms 63352 KB Output is correct
12 Correct 36 ms 63608 KB Output is correct
13 Correct 35 ms 63352 KB Output is correct
14 Correct 36 ms 63480 KB Output is correct
15 Correct 35 ms 63356 KB Output is correct
16 Correct 35 ms 63352 KB Output is correct
17 Correct 37 ms 63480 KB Output is correct
18 Correct 35 ms 63352 KB Output is correct
19 Correct 34 ms 63352 KB Output is correct
20 Correct 36 ms 63352 KB Output is correct
21 Correct 36 ms 63352 KB Output is correct
22 Correct 36 ms 63356 KB Output is correct
23 Correct 35 ms 63352 KB Output is correct
24 Correct 36 ms 63352 KB Output is correct
25 Correct 36 ms 63480 KB Output is correct
26 Correct 34 ms 63352 KB Output is correct
27 Correct 36 ms 63480 KB Output is correct

Subtask #3
0 / 71.0

# Verdict Execution time Memory Grader output
1 Correct 33 ms 63352 KB Output is correct
2 Incorrect 34 ms 63352 KB Integer parameter [name=A_i] equals to -1, violates the range [1, 2000000000000]
3 Halted 0 ms 0 KB -