Submission #1215880

#	Time	Username	Problem	Language	Result	Execution time	Memory
1215880		lrnnz	Raisins (IOI09_raisins)	C++20	0 / 100	110 ms	196608 KiB

raisins

#include <bits/stdc++.h>
#include <iostream>
#include <vector>
#include <algorithm>
#include <cmath>
#include <iomanip>
using namespace std;
 
#define all(a) (a).begin(), (a).end()
#define sz(a) (int)(a).size()
#define ll long long
#define ld long double
#define ui uint64_t
#define cont(set, element) ((set).find(element) != (set).end())
 
/********* DEBUG *********/
 
template <typename T>
void outvec(const vector<T>& Z){
    for (const T& x : Z)
    cout << x << ' ';
    cout << "\n";
}
void printVariable(const any& var) {
    if (!var.has_value()) {
        cout << "null";
        return;
    }

    if (var.type() == typeid(int)) {
        cout << any_cast<int>(var);
    } else if (var.type() == typeid(double)) {
        cout << any_cast<double>(var);
    } else if (var.type() == typeid(float)) {
        cout << any_cast<float>(var);
    } else if (var.type() == typeid(char)) {
        cout << any_cast<char>(var);
    } else if (var.type() == typeid(bool)) {
        cout << (any_cast<bool>(var) ? "true" : "false");
    } else if (var.type() == typeid(string)) {
        cout << any_cast<string>(var);
    } else if (var.type() == typeid(const char*)) {
        cout << any_cast<const char*>(var);
    } else if (var.type() == typeid(long long)) {
        cout << any_cast<long long>(var);
    } else {
        cout << "[unknown type]";
    }
}

template<typename... Args>
void outval(Args... args) {
    vector<any> variables = {args...};
    
    for (size_t i = 0; i < variables.size(); ++i) {
        printVariable(variables[i]);
        if (i != variables.size() - 1) {
            cout << " ";
        }
    }
    cout << "\n";
}

#define sp << " " <<

/********* DEBUG *********/

const ll MOD = 1e9+7;
const ll MOD2 = 998244353;
const ll inf = 1e18;
const ll mxN = 2000005;

ll re(ll tlx, ll tly, ll brx, ll bry, vector<vector<ll>> &grid, ll sum){
    ll ans = inf;
    if (tlx == brx && tly == bry)
        return 0;

    ll curr = 0;
    for (int i = tly; i < bry; i++){
        for (int j = tlx; j <= brx; j++){
            curr += grid[i][j];
        }

        ans = min(ans, re(tlx, tly, brx, i, grid, curr) + re(tlx, i + 1, brx, bry, grid, sum-curr));
    }

    curr = 0;
    for (int i = tlx; i < brx; i++){
        for (int j = tly; j <= bry; j++)
            curr += grid[j][i];

        ans = min(ans, re(tlx, tly, i, bry, grid, curr) + re(i + 1, tly, brx, bry, grid, sum-curr));
    }

    return ans + sum;
}

void solve(){
    ll n,m;
    cin >> n >> m;

    vector<vector<ll>> grid(n,vector<ll>(m));
    ll sum = 0;
    for (int i = 0; i < n; i++){
        for (int j = 0; j < m; j++){
            cin >> grid[i][j];
            sum += grid[i][j];
        }
    }

    outval(re(0, 0, m-1, n-1, grid, sum));
}

int main() {
    #ifndef ONLINE_JUDGE 
    freopen("input.txt", "r", stdin);
    freopen("output.txt", "w", stdout);
    #endif

    ios::sync_with_stdio(0);
    cin.tie(0);

    ll t = 1;
    //cin >> t;
    while (t--) {
        solve();
    }
}    

Compilation message (stderr)

raisins.cpp: In function 'int main()':
raisins.cpp:116:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
  116 |     freopen("input.txt", "r", stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
raisins.cpp:117:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
  117 |     freopen("output.txt", "w", stdout);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 0 / 100