Compilare: main.cpp: In function 'int main()': main.cpp:30:35: warning: NULL used in arithmetic [-Wpointer-arith] for(i = 0; sum < w && s[i] != NULL; i++) { ^~~~ main.cpp:34:16: warning: NULL used in arithmetic [-Wpointer-arith] if(s[i] == NULL && sum <= w) { ^~~~ main.cpp:38:20: warning: NULL used in arithmetic [-Wpointer-arith] if(s[i] == NULL) i--; ^~~~ main.cpp:39:14: warning: statement has no effect [-Wunused-value] for(i; i >= 0 && sum+3 > w; i--) sum -= l[mp(s[i])]; ^ main.cpp:40:9: warning: this 'for' clause does not guard... [-Wmisleading-indentation] for(int j = 0; j <= i; j++) cout << s[j]; cout << "..."; ^~~ main.cpp:40:51: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for' for(int j = 0; j <= i; j++) cout << s[j]; cout << "..."; ^~~~