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Submission #975292

# Submission time Handle Problem Language Result Execution time Memory
975292 2024-05-04T17:08:37 Z Mr_Husanboy Potatoes and fertilizers (LMIO19_bulves) C++17
54 / 100
 104 ms 262144 KB 
//#pragma GCC optimize("Ofast,O3")
//#pragma GCC target("avx,avx2")
#include <bits/stdc++.h>
using namespace std;



#ifdef LOCAL
#include "debugger.cpp"
#else
#define debug(...)
#endif
template<class T>
int len(T &a){
    return a.size();
}

using ll = long long;
using pii = pair<int,int>;
#define all(a) (a).begin(), (a).end()
#define ff first
#define ss second
string fileio = "";

mt19937 rng(chrono::high_resolution_clock::now().time_since_epoch().count());
const int MOD = 1e9 + 7;
const int inf = 1e9;
const ll infl = 1e18;
const int maxn = 1e5 + 1;





void solve(){
    int n; cin >> n;
    vector<ll> dif(n + 1);
    for(int i = 1; i <= n; i ++){
        int a, b; cin >> a >> b;
        dif[i] = a - b;
    }
    for(int i = 1; i <= n; i ++) dif[i] += dif[i - 1];

    debug(dif);

    vector<ll> dp(dif[n] + 1, 0);
    for(int i = 1; i <= n; i ++){
        vector<ll> tdp(dif[n] + 1, infl);
        for(int j = 0; j <= dif[n]; j ++){
            if(j) tdp[j] = tdp[j - 1];
            tdp[j] = min(tdp[j], dp[j] + abs(dif[i] - j));
        }
        swap(dp, tdp);

    }
    cout << dp[dif[n]];
}

int main(){
    ios_base::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL);
    auto start = chrono::high_resolution_clock::now();
    #ifndef LOCAL
    if(fileio.size()){
        freopen((fileio + ".in").c_str(), "r", stdin);
        freopen((fileio + ".out").c_str(), "w", stdout);
    }
    #endif
    int testcases = 1;
    #ifdef Tests
    cin >> testcases;
    #endif
    while(testcases --){
        solve();
        if(testcases) cout << '\n';
        #ifdef LOCAL
        else cout << '\n';
        cout << "_________________________" << endl;
        #endif
    }
    #ifdef LOCAL
    auto duration = chrono::duration_cast<chrono::microseconds>(chrono::high_resolution_clock::now() - start);
    
    cout << "time: " << (double)duration.count()/1000.0 << " milliseconds" << endl;
    #endif
    return 0;
}

Compilation message

bulves.cpp: In function 'int main()':
bulves.cpp:61:10: warning: variable 'start' set but not used [-Wunused-but-set-variable]
   61 |     auto start = chrono::high_resolution_clock::now();
      |          ^~~~~
bulves.cpp:64:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   64 |         freopen((fileio + ".in").c_str(), "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
bulves.cpp:65:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   65 |         freopen((fileio + ".out").c_str(), "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
24.0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 476 KB Output is correct
4 Correct 6 ms 1116 KB Output is correct
5 Correct 12 ms 1880 KB Output is correct
6 Correct 36 ms 5588 KB Output is correct
7 Correct 74 ms 11216 KB Output is correct
8 Correct 58 ms 9228 KB Output is correct
9 Correct 56 ms 8568 KB Output is correct
10 Correct 55 ms 6228 KB Output is correct
11 Correct 48 ms 6228 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 476 KB Output is correct
4 Correct 6 ms 1116 KB Output is correct
5 Correct 12 ms 1880 KB Output is correct
6 Correct 36 ms 5588 KB Output is correct
7 Correct 74 ms 11216 KB Output is correct
8 Correct 58 ms 9228 KB Output is correct
9 Correct 56 ms 8568 KB Output is correct
10 Correct 55 ms 6228 KB Output is correct
11 Correct 48 ms 6228 KB Output is correct
12 Correct 18 ms 3100 KB Output is correct
13 Correct 51 ms 6748 KB Output is correct
14 Correct 70 ms 10892 KB Output is correct
15 Correct 76 ms 9232 KB Output is correct
16 Correct 59 ms 8528 KB Output is correct
17 Correct 53 ms 6224 KB Output is correct
18 Correct 1 ms 348 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 4 ms 348 KB Output is correct
6 Correct 12 ms 468 KB Output is correct
7 Correct 60 ms 680 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 5 ms 344 KB Output is correct
10 Correct 5 ms 348 KB Output is correct

Subtask #4
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 476 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 4 ms 348 KB Output is correct
6 Correct 12 ms 468 KB Output is correct
7 Correct 60 ms 680 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 5 ms 344 KB Output is correct
10 Correct 5 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Runtime error 104 ms 262144 KB Execution killed with signal 9
13 Halted 0 ms 0 KB -

Subtask #5
0 / 36.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 476 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 4 ms 348 KB Output is correct
6 Correct 12 ms 468 KB Output is correct
7 Correct 60 ms 680 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 5 ms 344 KB Output is correct
10 Correct 5 ms 348 KB Output is correct
11 Correct 6 ms 1116 KB Output is correct
12 Correct 12 ms 1880 KB Output is correct
13 Correct 36 ms 5588 KB Output is correct
14 Correct 74 ms 11216 KB Output is correct
15 Correct 58 ms 9228 KB Output is correct
16 Correct 56 ms 8568 KB Output is correct
17 Correct 55 ms 6228 KB Output is correct
18 Correct 48 ms 6228 KB Output is correct
19 Correct 18 ms 3100 KB Output is correct
20 Correct 51 ms 6748 KB Output is correct
21 Correct 70 ms 10892 KB Output is correct
22 Correct 76 ms 9232 KB Output is correct
23 Correct 59 ms 8528 KB Output is correct
24 Correct 53 ms 6224 KB Output is correct
25 Runtime error 104 ms 262144 KB Execution killed with signal 9
26 Halted 0 ms 0 KB -