Submission #267421

#	Time	Username	Problem	Language	Result	Execution time	Memory
267421		blue	가로등 (APIO19_street_lamps)	C++11	Compilation error	0 ms	0 KiB

street_lamps

#include <iostream>
#include <vector>
using namespace std;

int main()
{
    int n, q;
    cin >> n >> q;

    string S;
    cin >> S;

    bool on[n+1];
    vector<int> started(n+1, -1);
    vector<int> res(n+1, 0);
    for(int i = 1; i <= n; i++)
    {
        if(S[i-1] == '1') started[i] = 0;
    }


    int A, B;
    for(int i = 1; i <= q; i++)
    {
        cin >> S;
        if(S == "toggle")
        {
            cin >> A;
            if(started[A] == -1) started[A] = i;
            else
            {
                res += i - started[A];
                started[A] = -1;
            }
        }
        else
        {
            cin >> A >> B;
            cout << res[A] << '\n';
        }
    }
}

Compilation message (stderr)

street_lamps.cpp: In function 'int main()':
street_lamps.cpp:32:21: error: no match for 'operator+=' (operand types are 'std::vector<int>' and 'int')
   32 |                 res += i - started[A];
street_lamps.cpp:13:10: warning: unused variable 'on' [-Wunused-variable]
   13 |     bool on[n+1];
      |          ^~