12 条题解
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1
- #include<bits/stdc++.h> using namespace std ; int main ( ) { int n ; cin >> n ; int age ; int group1 = 0 , group2 = 0 , group3 = 0 , group4 = 0 ; for ( int i = 1 ; i <= n ; i ++ ) { cin >> age ; if ( age >= 0 && age <= 18 ) group1 ++ ; else if ( age >= 19 && age <= 35 ) group2 ++ ; else if ( age >= 36 && age <= 60 ) group3 ++ ; else group4 ++ ; } cout << fixed << setprecision(2) << (double) group1 / n * 100 << "%" << endl << (double) group2 / n * 100 << "%" << endl << (double) group3 / n * 100 << "%" << endl << (double) group4 / n * 100 << "%" << endl ; return 0 ; }
linjingtong
LV 6
@ 2026-5-16 11:02:39