CCF202305-1vector.push_back()是深拷贝； cout后不跟endl会出现程序卡住的情况（vs)

vector.push_back()是深拷贝； cout后不跟endl会出现程序卡住的情况（vs);

代码如下： `#include #include #include #include #include using namespace std;

int main() { int n; cin >> n; vector<vector > v; vector tmp; int* cmd = (int*)calloc(n, sizeof(int)); char temp; for (int k = 0,l,i;k < n;k++,tmp.clear()) {

	for (l = 0;l < 64;l++) {
		cin >> temp;
		tmp.push_back(temp);
	}
	l = 0;
	while (l < v.size()) {
		for (i = 0;i < 64;i++)
			if (v[l][i] != tmp[i])break;
		if (i == 64) {
			*(cmd + l) += 1;
			cout << *(cmd + l) << endl;
			break;
		}
		
		l++;
	}
	if (l == v.size()) {
		v.push_back(tmp);
		*(cmd + l) += 1;
		cout << *(cmd + l)<<endl;
	}
}

return 0;