#include <bits/stdc++.h> using namespace std ; int main ( int argc , char const * argv [ ]) { int n ; cin >> n ; int won = n ; for ( int i = 0 ; i < n ; ++ i ) { string sequence ; cin >> sequence ; if ( sequence . find ( " CD " ) != -1 ) { won -- ; } } cout << won ; return 0 ; }
#include <bits/stdc++.h> using namespace std ; int main ( int argc , char const * argv [ ]) { int n ; cin >> n ; for ( int i = 0 ; i < n ; ++ i ) { int temp , j ; cin >> j >> temp ; int sum = 0 ; for ( int k = 2 ; k < temp +2 ; ++ k ) { sum += k ; } cout << i +1 << " " << sum << " \n " ; } return 0 ; }
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