#include<stdio.h> int main(){ char c[90]; gets(c); int i,j=0; for(i=0;i<90;i++){ if(c[i]>=a&&c[i]<=z||c[i]>=A&&c[i]<=Z){ c[j]=c[i]; j++; } } puts(c); return 0; } /* Main.c: In function 'main': Main.c:4:3: warning: 'gets' is deprecated (declared at /usr/include/stdio.h:638) [-Wdeprecated-declarations] gets(c); ^ Main.c:7:14: error: 'a' undeclared (first use in this function) if(c[i]>=a&&c[i]<=z||c[i]>=A&&c[i]<=Z){ ^ Main.c:7:14: note: each undeclared identifier is reported only once for each function it appears in Main.c:7:23: error: 'z' undeclared (first use in this function) if(c[i]>=a&&c[i]<=z||c[i]>=A&&c[i]<=Z){ ^ Main.c:7:32: error: 'A' undeclared (first use in this function) if(c[i]>=a&&c[i]<=z||c[i]>=A&&c[i]<=Z){ ^ Main.c:7:41: error: 'Z' undeclared (first use in this function) if(c[i]>=a&&c[i]<=z||c[i]>=A&&c[i]<=Z){ ^ */ |
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