Compilare: main.cpp: In function 'int solve(int, int, int, int, char*)': main.cpp:11:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<strlen(v);i++) ~^~~~~~~~~~ main.cpp:16:27: warning: suggest parentheses around '&&' within '||' [-Wparentheses] else if(v[i]>='x'&&v[i]<='z'||v[i]=='t') ~~~~~~~~~^~~~~~~~~~~ main.cpp:31:48: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(v[i]>='0'&&v[i]<='9'&&i<strlen(v)) ~^~~~~~~~~~ main.cpp:11:6: warning: this 'for' clause does not guard... [-Wmisleading-indentation] for(i=0;i<strlen(v);i++) ^~~ main.cpp:51:10: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for' return S; ^~~~~~ main.cpp:10:19: warning: unused variable 'j' [-Wunused-variable] int S=0,nr,i,j,semn,S1; ^ main.cpp: In function 'int main()': main.cpp:70:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<strlen(v);i++) ~^~~~~~~~~~ main.cpp:80:27: warning: suggest parentheses around '&&' within '||' [-Wparentheses] else if(v[i]>='x'&&v[i]<='z'||v[i]=='t') ~~~~~~~~~^~~~~~~~~~~ main.cpp:90:48: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(v[i]>='0'&&v[i]<='9'&&i<strlen(v)) ~^~~~~~~~~~ main.cpp:70:8: warning: this 'for' clause does not guard... [-Wmisleading-indentation] for(i=0;i<strlen(v);i++) ^~~ main.cpp:106:10: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for' out<<S; ^~~ main.cpp:57:11: warning: unused variable 'j' [-Wunused-variable] int i,j,S=0,n,nr,semn,a,b,E,C; ^ main.cpp:57:17: warning: unused variable 'n' [-Wunused-variable] int i,j,S=0,n,nr,semn,a,b,E,C; ^ main.cpp: In function 'int solve(int, int, int, int, char*)': main.cpp:33:21: warning: 'semn' may be used uninitialized in this function [-Wmaybe-uninitialized] S1=semn*nr; ~~^~~~~~~~ main.cpp: In function 'int main()': main.cpp:94:28: warning: 'semn' may be used uninitialized in this function [-Wmaybe-uninitialized] S=S+(semn*nr); ~~~~~^~~~