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  1. #include <stdio.h>
  2. //引数の絶対値を返す関数
  3. int abs(int x){
  4. return(x>0)?x:-x;
  5. }
  6. //引数の二乗を返す関数
  7. int square(int x){
  8. return x*x;
  9. }
  10. //main関数
  11. int main(void) {
  12. int n,m;
  13. n=2;
  14. m=3;
  15. printf("|%d^2-%d^2| = %d", n,m,abs(square(n)-square(m)) );
  16. return 0;
  17. }
  18.  
Success #stdin #stdout 0.01s 5324KB
stdin
Standard input is empty
stdout
|2^2-3^2| = 5