Eroare de compilare: user.c: In function ‘P’: user.c:23:13: warning: implicit declaration of function ‘plata’ [-Wimplicit-function-declaration] p[k]=j,m=m+j*c[k],plata(k+1),m=m-j*c[k]; ^ user.c: In function ‘main’: user.c:26:9: warning: ignoring return value of ‘freopen’, declared with attribute warn_unused_result [-Wunused-result] freopen("triunghi.in","r",stdin),freopen("triunghi.out","w",stdout),scanf("%d%d",&n,&s),c[0]=1,t=n+1; ^ user.c:26:42: warning: ignoring return value of ‘freopen’, declared with attribute warn_unused_result [-Wunused-result] freopen("triunghi.in","r",stdin),freopen("triunghi.out","w",stdout),scanf("%d%d",&n,&s),c[0]=1,t=n+1; ^ user.c:26:75: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result] freopen("triunghi.in","r",stdin),freopen("triunghi.out","w",stdout),scanf("%d%d",&n,&s),c[0]=1,t=n+1; ^ /tmp/cc2dKhcd.o: In function `P': user.c:(.text+0x58): undefined reference to `plata' collect2: error: ld returned 1 exit status