Eroare de compilare: main.c: In function 'main': main.c:100:21: warning: implicit declaration of function 'nextch' [-Wimplicit-function-declaration] e[i][j]=nextch(fin); ^~~~~~ main.c:97:5: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d%d%d ", &n, &m, &q); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.c:133:9: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d%d%d%d", &x1, &y1, &x2, &y2); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ./cconKTLV.o: In function `main': main.c:(.text.startup+0x95): undefined reference to `nextch' collect2: error: ld returned 1 exit status Non zero exit status: 1