abc022.contest.atcoder.jp #include <iostream> using namespace std; void Solve(int n) { int a, data[100000]={0}, answer=0; for (int i=0; i<n; ++i) { cin >> a; ++data[a-1]; if (data[a-1] >= 2) ++answer; } cout << answer << endl; } int main(void) { int n; cin >> n; So</n;></iostream>…

abc022.contest.atcoder.jp #include <iostream> using namespace std; void Solve(int n, int s, int t) { int w, a, answer=0; cin >> w; if (s<=w && w<=t) ++answer; for (int i=1; i<n; ++i) { cin >> a; w+=a; if (s<=w && w<=t) ++answer; } cout << answer << endl; } int main</n;></iostream>…