76 lines
1.6 KiB
C
76 lines
1.6 KiB
C
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#include <stdlib.h>
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#include <stdio.h>
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#define LIMIT 1000
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#define BUF_LIM 512
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long racineCarree(long n){
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for(long i=0; i<(n/2); i++){
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if((i*i)==n){
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return i;
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}
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}
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return -1;
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}
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long* racineCarreeTab(long* tab, int count){
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long* rst = (long*) malloc(LIMIT*sizeof(long));
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for(long i=0; i<count; i++){
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rst[i] = racineCarree(tab[i]);
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}
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return rst;
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}
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int main(int argc, char** argv){
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/*variables*/
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long* tab = (long*) malloc(LIMIT*sizeof(long));
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long* rst = (long*) malloc(LIMIT*sizeof(long));
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int count = 0;
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char * buffer = (char*) malloc(BUF_LIM*sizeof(char));
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FILE* f = fopen(argv[1], "r");
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unsigned short hasfile = 0;
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/*tests*/
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if(argc < 2){
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printf("USAGE:./a.out <entier(s) strictement(s) positif(s)>\n");
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printf("USAGE:./a.out <fichier>\n");
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return EXIT_FAILURE;
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}
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if(f!=NULL){
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while(fgets(buffer, BUF_LIM*sizeof(char), f)){
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tab[count] = strtol(buffer, NULL, 10);
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count++;
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}
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fclose(f);
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hasfile = 1;
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} else {
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for(int i=1; i<argc; i++){
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if((strtol(argv[i], NULL, 10)<0)||(strtol(argv[i], NULL, 10)==0L)){
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printf("FORMAT:entier strictement positif\n");
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return EXIT_FAILURE;
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}
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tab[i-1] = strtol(argv[i], NULL, 10);
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count++;
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}
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}
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/*prog*/
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if((argc == 2)&&(hasfile!=1)){
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printf("racineCarree de %ld = %ld\n", strtol(argv[1], NULL, 10), racineCarree(strtol(argv[1], NULL, 10)));
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} else {
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rst = racineCarreeTab(tab, count);
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printf("racineCarreeTab : \n");
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for(int i=0; i<count; i++){
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printf(" . racine de %ld = %ld\n", tab[i], rst[i]);
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}
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}
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free(rst);
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free(tab);
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free(buffer);
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return EXIT_SUCCESS;
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}
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