Grading__牛客网

Grading hundreds of thousands of Graduate Entrance Exams is a hard work. It is even harder to design a process to make the results as fair as possible. One way is to assign each exam problem to 3 independent experts. If they do not agree to each other, a judge is invited to make the final decision. Now you are asked to write a program to help this process. For each problem, there is a full-mark P and a tolerance T(<P) given. The grading rules are: • A problem will first be assigned to 2 experts, to obtain G1 and G2. If the difference is within the tolerance, that is, if |G1 - G2| ≤ T, this problem's grade will be the average of G1 and G2. • If the difference exceeds T, the 3rd expert will give G3. • If G3 is within the tolerance with either G1 or G2, but NOT both, then this problem's grade will be the average of G3 and the closest grade. • If G3 is within the tolerance with both G1 and G2, then this problem's grade will be the maximum of the three grades. • If G3 is within the tolerance with neither G1 nor G2, a judge will give the final grade GJ.

Each input file may contain more than one test case. Each case occupies a line containing six positive integers: P, T, G1, G2, G3, and GJ, as described in the problem. It is guaranteed that all the grades are valid, that is, in the interval [0, P].

#include <stdio.h> #include <math.h> main(){ float g1,g2,g3,gj,t,p; while(scanf("%f %f %f %f %f %f",&p,&t,&g1,&g2,&g3,&gj)!=EOF){ float avg=(g1+g2)/2; float max,x1,x2,x3; if(g1>g2&&g1>g3){ max=g1; }else if(g2>g1&&g2>g3){ max=g2; }else if(g3>g1&&g3>g2){ max= g3; } if(abs(g1-g2)<=t) { printf("%.1f",avg); }else { if(abs(g3-g1)<=t&&abs(g3-g2)<=t){ printf("%.1f",max); }else if(abs(g3-g1)>t&&abs(g3-g2)>t) { printf("%.1f",gj); }else{ x1=abs(g3-g1); x2=abs(g3-g2); if(abs(x1-t)<abs(x2-t)){ printf("%.1f",(g3+g1)/2); }else{ printf("%.1f",(g3+g2)/2); } } } } }

我的以下代码在IDE中运行是完全符合要求的，输出结果也完全一样，可是牛客网上过不去，这是不是别太死板了#include<stdio.h> #include <math.h> float max(float x,float y,float z){float M;M=(x>y)?x:y;M=(M>z)?M:z;return M; }int main() {float P,T;while(scanf("%f %f",&P,&T)!=EOF&&T<=P){float G1,G2,G3,Gj;while(scanf("%f %f",&G1,&G2)!=EOF){if(fabsf(G1-G2)<=T){ printf("%.1f",(G1+G2)/2); }else{ scanf("%f",&G3);if((fabsf(G1-G3)<=T)&&(fabsf(G2-G3)<=T)){ printf("%.1f",max(G1,G2,G3));break; }else if(fabsf(G1-G3)<=T){ printf("%.1f",(G1+G3)/2); }else if(fabsf(G2-G3)<=T){ printf("%.1f",(G2+G3)/2); }else{ scanf("%f",&Gj); printf("%.1f",Gj); } } } }return 0; }

//需要注意的是强制转换一定不要忘记(float)(a+b)/2 #include <stdio.h> #include <stdlib.h> #include <math.h> int rever(int a,int b){ if(a-b>=0){ return a-b; }else{ return b-a; } } int main(){ int p,t,a,b,c,d; while(scanf("%d %d %d %d %d %d",&p,&t,&a,&b,&c,&d)!=EOF){ int maxs=0; float x; if(rever(a,b)<=t){ x=(float)(a+b)/2; printf("%.1f",x); }else{ if(rever(c,a)>t&&rever(c,b)>t){ printf("%d",d); }else if(rever(c,a)<=t&&rever(c,b)<=t){ maxs=fmax(a,b); maxs=fmax(maxs,c); printf("%d",maxs); }else{ if(rever(c,a)<=t){ x=(float)(a+c)/2; printf("%.1f",x); }else{ x=(float)(c+b)/2; printf("%.1f",x); } } } } return 0; }

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