./Main.c:1:1: warning: data definition has no type or storage class
i;main(h,w,j){char s[6];for(scanf("%d%d",&h,&w);i++<h;)for(j=0;j++<w;){scanf("%s",s);if(!strcmp(s,"snuke"))printf("%c%d",j+64,i);}}
^
./Main.c:1:1: warning: type defaults to ‘int’ in declaration of ‘i’ [-Wimplicit-int]
./Main.c:1:3: warning: return type defaults to ‘int’ [-Wimplicit-int]
i;main(h,w,j){char s[6];for(scanf("%d%d",&h,&w);i++<h;)for(j=0;j++<w;){scanf("%s",s);if(!strcmp(s,"snuke"))printf("%c%d",j+64,i);}}
^
./Main.c: In function ‘main’:
./Main.c:1:3: warning: type of ‘h’ defaults to ‘int’ [-Wimplicit-int]
./Main.c:1:3: warning: type of ‘w’ defaults to ‘int’ [-Wimplicit-int]
./Main.c:1:3: warning: type of ‘j’ defaults to ‘int’ [-Wimplicit-int]
./Main.c:1:29: warning: implicit declaration of function ‘scanf’ [-Wimplicit-function-declaration]
i;main(h,w,j){char s[6];for(scanf("%d%d",&h,&w);i++<h;)for(j=0;j++<w;){scanf("%s",s);if(!strcmp(s,"snuke"))printf("%c%d",j+64,i);}}
^
./Main.c:1:29: warning: ...