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Submission #982986

# Submission time Handle Problem Language Result Execution time Memory
982986 2024-05-15T06:27:40 Z vjudge1 Street Lamps (APIO19_street_lamps) C++17
0 / 100
 50 ms 1364 KB 
#include<bits/stdc++.h>
#define sz size()
#define ll long long
using namespace std;


ll cnt[205][205];
void solve()
{
    ll n, q, i, j, k;
    cin >> n >> q;
    string s;
    cin >> s;

    ll a[n + 1], sum[n + 1], lst[n + 1] = {};
    for(i = 1; i <= n; ++i)
        a[i] = s[i - 1] - '0',
        sum[i] = a[i];
//
//    if(n <= 200 && q <= 200)
//    {
//        for(i = 1; i <= n; ++i)
//            for(j = i; j <= n; ++j)
//            {
//                if(!a[j]) break;
//                ++cnt[i][j];
//            }
//        while(q--)
//        {
//            cin >> s;
//            ll l, r;
//            if(s == "toggle")
//                cin >> l,
//                a[l] ^= 1;
//            else
//                cin >> l >> r,
//                cout << cnt[l][r - 1] << '\n';
//            for(i = 1; i <= n; ++i)
//                for(j = i; j <= n; ++j)
//                {
//                    if(!a[j]) break;
//                    ++cnt[i][j];
//                }
//        }
//    }

    for(i = 1; i <= q; ++i)
    {
        cin >> s;
        ll l, r;
        if(s == "toggle")
        {
            cin >> l;
            sum[l] += (i - lst[l]) * a[l];
            a[l] ^= 1;
            lst[l] = i;
            continue;
        }
        cin >> l >> r;
        cout << sum[l] + (i - lst[l]) * a[l] << '\n';
    }

}

signed main()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0), cout.tie(0);
    solve();
}

Compilation message

street_lamps.cpp: In function 'void solve()':
street_lamps.cpp:10:17: warning: unused variable 'j' [-Wunused-variable]
   10 |     ll n, q, i, j, k;
      |                 ^
street_lamps.cpp:10:20: warning: unused variable 'k' [-Wunused-variable]
   10 |     ll n, q, i, j, k;
      |                    ^

Subtask #1
0 / 20.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 348 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #2
0 / 20.0

# Verdict Execution time Memory Grader output
1 Incorrect 50 ms 1364 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #3
0 / 20.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 348 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 20.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 348 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 20.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 348 KB Output isn't correct
2 Halted 0 ms 0 KB -