Compilare: main.cpp: In function 'int main()': main.cpp:12:10: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<=strlen(s)-1;i++) ~^~~~~~~~~~~~~ main.cpp:37:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<=strlen(s)-1;i++) ~^~~~~~~~~~~~~ main.cpp:45:1: warning: this 'else' clause does not guard... [-Wmisleading-indentation] else ^~~~ main.cpp:48:5: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'else' return 0; ^~~~~~ main.cpp:38:9: warning: 'cc' may be used uninitialized in this function [-Wmaybe-uninitialized] if(s[i]-'0'<=cc) ^~ main.cpp:42:9: warning: 'ccf' may be used uninitialized in this function [-Wmaybe-uninitialized] if(s[i]-'0'==ccf && cf>0) ^~