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202401-programming-assignments/【实践课内】12.函数3/6-3 累计销售.c

10 lines
171 B
C

double price(double x) {
static double sum = 0;
sum += x;
if (sum < 5000) return sum * 0.01;
if (sum < 10000) return sum * 0.05;
return sum * 0.1;
}