Main.cc: In function ‘int main()’: Main.cc:9:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i='a'?l[i]=='a'||l[i]=='e'||l[i]=='i'||l[i]=='o'||l[i]=='u'?l[i]-=32:l[i]=l[i]:l[i]<='Z'?l[i]!='a'&&l[i]!='e'&&l[i]!='i'&&l[i]!='o'&&l[i]!='u'?l[i]+=32:l[i]=l[i]; ~^~~~~~~~~~ Main.cc:9:197: error: expected ‘:’ before ‘;’ token for(int i=0;i='a'?l[i]=='a'||l[i]=='e'||l[i]=='i'||l[i]=='o'||l[i]=='u'?l[i]-=32:l[i]=l[i]:l[i]<='Z'?l[i]!='a'&&l[i]!='e'&&l[i]!='i'&&l[i]!='o'&&l[i]!='u'?l[i]+=32:l[i]=l[i]; ^ Main.cc:9:197: error: expected primary-expression before ‘;’ token