Submission #355980

#	Time	Username	Problem	Language	Result	Execution time	Memory
355980		vaaven	Weighting stones (IZhO11_stones)	C++14	0 / 100	2 ms	532 KiB

stones

#include <iostream>
#include <vector>
#include <algorithm>
#include <iomanip>
#include <tuple>
#include <math.h>
#include <set>
#include <stack>
#include <bitset>
#include <map>
#include <cassert>
#include <queue>
#include <random>
#include <unordered_set>
#include <unordered_map>
#define pqueue priority_queue
#define pb(x) push_back(x)
// #define endl '\n'
#define all(x) x.begin(), x.end()
#define int long  long 

using namespace std;

typedef long long ll;
typedef unsigned long long ull;
typedef long double ld;
typedef vector<int> vi;
typedef vector<vector<int> > vvi;
// typedef tuple<ll, ll, ll> tiii;
typedef pair<int, int> pii;
typedef vector<pair<int, int> > vpii;
typedef vector<bool> vb;
typedef vector<string> vs;
typedef vector<char> vc;

const int inf = 1e9 + 228;
const ll mod = 1e9 + 7;
const ll mod2 = 998244353;
const ld eps = 1e-5;


void fast_io(){
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    freopen("stones.in", "r", stdin);
    freopen("stones.out", "w", stdout);
}

void solve(){
    int n;
    cin >> n;
    int a, b;
    a = b = 0;
    for(int i=0; i<n; i++){
        int t, k;
        cin >> t >> k;
        if(k == 1){
            a += t;
        } else{
            b += t;
        }
        if(a > b){
            cout << ">" << endl;
        } else if(a < b){
            cout << "<" << endl;
        } else{
            cout << "?" << endl;
        }
    }
}

signed main(){
    fast_io();
//  srand(time(NULL));
    cout << fixed;
    int q = 1;
    while(q--)
        solve();
}

Compilation message (stderr)

stones.cpp: In function 'void fast_io()':
stones.cpp:45:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
   45 |     freopen("stones.in", "r", stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
stones.cpp:46:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
   46 |     freopen("stones.out", "w", stdout);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 0 / 100