Run ID 作者 问题 语言 测评结果 Time Memory 代码长度 提交时间
66545 石依灵 11计算分段函数的值 C++ Compile Error 0 MS 0 KB 310 2024-03-09 13:26:39

Tests(0/0):

Code:

# include<iostream> # include<cstdio> using namespace std; int main(){ double x,y; scanf("%2lf",&x); if(0<=x && x<5){ y=-x+2.5; } if(5<=x && x<10){ y=2-1.5*(x-3)*2; } if(10<=x && <20){ y=x/2-1.5; } printf("%3.lf",y); return 0; }

Run Info:

Main.cc: In function 'int main()':
Main.cc:13:17: error: expected primary-expression before '<' token
     if(10<=x && <20){
                 ^
Main.cc:6:21: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%2lf",&x);
                     ^