#include <stdio.h> #include <stdlib.h> int ReadScore(long num[],int
score[]);// Input student number and grade from keyboard int LinSearch(long num[], long x, int n);// Linear search int
ReadScore(long num[],int score[]) { int i = -1; do{ i++; printf("Input
num,score:"); scanf("%ld%d", &num[i], &score[i]); }while (score[i] >= 0);
return i; } int LinSearch(long num[], long x, int n) { int i; for (i=0; i<n;
i++) { if (num[i] == x) { return i; } } return -1; } int main() {// Find the student's grade of a student number
int score[N], n, pos; long num[N], x; n = ReadScore(num, score); printf("Input
the searching ID:"); scanf("%ld", &x); pos = LinSearch(num, x, n); if (pos !=
-1) { printf("score=%d\n", score[pos]); } else { printf("Not found!\n"); }
system("pause"); return 0; }

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