#include<iostream> int main(){ int a; float c,d,b; scanf("%d,%f",&a,&b); switch(a){ case 1:c=b*0.225;d=b+c;printf("合计为%f",d); break; case 2:c=b*0.243;d=b+c;c=d*0.243;d=d+c;printf("合计为%f",d); break; case 3:c=b*0.270;d=b+c;c=d*0.270;d=d+c;c=d*0.270;d=d+c;printf("合计为%f",d); break; case 4:c=b*0.288;d=b+c;c=d*0.288;d=d+c;c=d*0.288;d=d+c;c=d*0.288;d=d+c;printf("合计为%f",d); break; case 5:c=b*0.300;d=b+c;c=d*0.300;d=d+c;c=d*0.300;d=d+c;c=d*0.300;d=d+c;c=d*0.300;d=d+c;printf("合计为%f",d); break; default:break; } return 0; }